5269749664 has 12 divisors (see below), whose sum is σ = 10374819714. Its totient is φ = 2634874816.

The previous prime is 5269749637. The next prime is 5269749677. The reversal of 5269749664 is 4669479625.

It can be written as a sum of positive squares in only one way, i.e., 3282373264 + 1987376400 = 57292^2 + 44580^2 .

It is a super-2 number, since 2×5269749664² = 55540523042456225792, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 5269749599 and 5269749608.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 82339807 + ... + 82339870.

Almost surely, 2^5269749664 is an apocalyptic number.

It is an amenable number.

5269749664 is a deficient number, since it is larger than the sum of its proper divisors (5105070050).

5269749664 is a wasteful number, since it uses less digits than its factorization.

5269749664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 164679687 (or 164679679 counting only the distinct ones).

The product of its digits is 19595520, while the sum is 58.

The square root of 5269749664 is about 72593.0414296026. The cubic root of 5269749664 is about 1740.1899717716.

The spelling of 5269749664 in words is "five billion, two hundred sixty-nine million, seven hundred forty-nine thousand, six hundred sixty-four".