7635064521 has 16 divisors (see below), whose sum is σ = 12140227584. Its totient is φ = 4173202704.

The previous prime is 7635064511. The next prime is 7635064543. The reversal of 7635064521 is 1254605367.

It is not a de Polignac number, because 7635064521 - 2¹⁰ = 7635063497 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 7635064521.

It is not an unprimeable number, because it can be changed into a prime (7635064511) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7903311 + ... + 7904276.

It is an arithmetic number, because the mean of its divisors is an integer number (758764224).

Almost surely, 2^7635064521 is an apocalyptic number.

It is an amenable number.

7635064521 is a deficient number, since it is larger than the sum of its proper divisors (4505163063).

7635064521 is a wasteful number, since it uses less digits than its factorization.

7635064521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15807620.

The product of its (nonzero) digits is 151200, while the sum is 39.

The square root of 7635064521 is about 87378.8562582505. The cubic root of 7635064521 is about 1969.1141989790.

Adding to 7635064521 its reverse (1254605367), we get a palindrome (8889669888).

The spelling of 7635064521 in words is "seven billion, six hundred thirty-five million, sixty-four thousand, five hundred twenty-one".