7260818217 has 4 divisors (see below), whose sum is σ = 9681090960. Its totient is φ = 4840545476.

The previous prime is 7260818209. The next prime is 7260818231. The reversal of 7260818217 is 7128180627.

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, and also an emirpimes, since its reverse is a distinct semiprime: 7128180627 = 3 ⋅2376060209.

It is a cyclic number.

It is not a de Polignac number, because 7260818217 - 2³ = 7260818209 is a prime.

It is not an unprimeable number, because it can be changed into a prime (7260818237) 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, 1210136367 + ... + 1210136372.

It is an arithmetic number, because the mean of its divisors is an integer number (2420272740).

Almost surely, 2^7260818217 is an apocalyptic number.

It is an amenable number.

7260818217 is a deficient number, since it is larger than the sum of its proper divisors (2420272743).

7260818217 is a wasteful number, since it uses less digits than its factorization.

7260818217 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2420272742.

The product of its (nonzero) digits is 75264, while the sum is 42.

The square root of 7260818217 is about 85210.4349067648. The cubic root of 7260818217 is about 1936.4005081774.

The spelling of 7260818217 in words is "seven billion, two hundred sixty million, eight hundred eighteen thousand, two hundred seventeen".