2681222526573 has 4 divisors (see below), whose sum is σ = 3574963368768. Its totient is φ = 1787481684380.

The previous prime is 2681222526571. The next prime is 2681222526599. The reversal of 2681222526573 is 3756252221862.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2681222526573 - 2¹ = 2681222526571 is a prime.

It is a super-2 number, since 2×2681222526573² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2681222526571) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 446870421093 + ... + 446870421098.

It is an arithmetic number, because the mean of its divisors is an integer number (893740842192).

Almost surely, 2^{2681222526573} is an apocalyptic number.

It is an amenable number.

2681222526573 is a deficient number, since it is larger than the sum of its proper divisors (893740842195).

2681222526573 is an equidigital number, since it uses as much as digits as its factorization.

2681222526573 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 893740842194.

The product of its digits is 4838400, while the sum is 51.

The spelling of 2681222526573 in words is "two trillion, six hundred eighty-one billion, two hundred twenty-two million, five hundred twenty-six thousand, five hundred seventy-three".