13187579332 has 6 divisors (see below), whose sum is σ = 23078263838. Its totient is φ = 6593789664.

The previous prime is 13187579329. The next prime is 13187579351. The reversal of 13187579332 is 23397578131.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 11181793536 + 2005785796 = 105744^2 + 44786^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1648447413 + ... + 1648447420.

Almost surely, 2^13187579332 is an apocalyptic number.

It is an amenable number.

13187579332 is a deficient number, since it is larger than the sum of its proper divisors (9890684506).

13187579332 is a wasteful number, since it uses less digits than its factorization.

13187579332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3296894837 (or 3296894835 counting only the distinct ones).

The product of its digits is 952560, while the sum is 49.

The spelling of 13187579332 in words is "thirteen billion, one hundred eighty-seven million, five hundred seventy-nine thousand, three hundred thirty-two".