39131403012 has 72 divisors (see below), whose sum is σ = 112790537496. Its totient is φ = 11332168704.

The previous prime is 39131402993. The next prime is 39131403037. The reversal of 39131403012 is 21030413193.

It can be written as a sum of positive squares in 4 ways, for example, as 6603837696 + 32527565316 = 81264^2 + 180354^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2451283 + ... + 2467194.

It is an arithmetic number, because the mean of its divisors is an integer number (1566535243).

Almost surely, 2^39131403012 is an apocalyptic number.

It is an amenable number.

39131403012 is an abundant number, since it is smaller than the sum of its proper divisors (73659134484).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

39131403012 is a wasteful number, since it uses less digits than its factorization.

39131403012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4918517 (or 4918512 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 27.

The spelling of 39131403012 in words is "thirty-nine billion, one hundred thirty-one million, four hundred three thousand, twelve".