13125635464 has 16 divisors (see below), whose sum is σ = 24635771100. Its totient is φ = 6556096512.

The previous prime is 13125635443. The next prime is 13125635483. The reversal of 13125635464 is 46453652131.

It can be written as a sum of positive squares in 2 ways, for example, as 8694070564 + 4431564900 = 93242^2 + 66570^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 831849 + ... + 847480.

Almost surely, 2^13125635464 is an apocalyptic number.

It is an amenable number.

13125635464 is a deficient number, since it is larger than the sum of its proper divisors (11510135636).

13125635464 is a wasteful number, since it uses less digits than its factorization.

13125635464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1680312 (or 1680308 counting only the distinct ones).

The product of its digits is 259200, while the sum is 40.

The spelling of 13125635464 in words is "thirteen billion, one hundred twenty-five million, six hundred thirty-five thousand, four hundred sixty-four".