13287757732 has 12 divisors (see below), whose sum is σ = 23820736716. Its totient is φ = 6481832960.

The previous prime is 13287757709. The next prime is 13287757733. The reversal of 13287757732 is 23775778231.

It can be written as a sum of positive squares in 2 ways, for example, as 4422782016 + 8864975716 = 66504^2 + 94154^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 13287757732.

It is not an unprimeable number, because it can be changed into a prime (13287757733) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40511293 + ... + 40511620.

It is an arithmetic number, because the mean of its divisors is an integer number (1985061393).

Almost surely, 2^13287757732 is an apocalyptic number.

It is an amenable number.

13287757732 is a deficient number, since it is larger than the sum of its proper divisors (10532978984).

13287757732 is a wasteful number, since it uses less digits than its factorization.

13287757732 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81022958 (or 81022956 counting only the distinct ones).

The product of its digits is 3457440, while the sum is 52.

The spelling of 13287757732 in words is "thirteen billion, two hundred eighty-seven million, seven hundred fifty-seven thousand, seven hundred thirty-two".