8564722274657 has 4 divisors (see below), whose sum is σ = 8579165314500. Its totient is φ = 8550279234816.

The previous prime is 8564722274617. The next prime is 8564722274699. The reversal of 8564722274657 is 7564722274658.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 3404028690001 + 5160693584656 = 1845001^2 + 2271716^2 .

It is a cyclic number.

It is not a de Polignac number, because 8564722274657 - 2¹⁴ = 8564722258273 is a prime.

It is a super-2 number, since 2×8564722274657² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 8564722274593 and 8564722274602.

It is not an unprimeable number, because it can be changed into a prime (8564722274617) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7221519032 + ... + 7221520217.

It is an arithmetic number, because the mean of its divisors is an integer number (2144791328625).

Almost surely, 2^{8564722274657} is an apocalyptic number.

It is an amenable number.

8564722274657 is a deficient number, since it is larger than the sum of its proper divisors (14443039843).

8564722274657 is a wasteful number, since it uses less digits than its factorization.

8564722274657 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14443039842.

The product of its digits is 316108800, while the sum is 65.

Subtracting from 8564722274657 its reverse (7564722274658), we obtain a palindrome (999999999999).

The spelling of 8564722274657 in words is "eight trillion, five hundred sixty-four billion, seven hundred twenty-two million, two hundred seventy-four thousand, six hundred fifty-seven".