139304731264 has 32 divisors (see below), whose sum is σ = 277788513600. Its totient is φ = 69585261312.

The previous prime is 139304731253. The next prime is 139304731271. The reversal of 139304731264 is 462137403931.

It is a tau number, because it is divible by the number of its divisors (32).

It is a self number, because there is not a number n which added to its sum of digits gives 139304731264.

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, 390742 + ... + 656725.

It is an arithmetic number, because the mean of its divisors is an integer number (8680891050).

Almost surely, 2^139304731264 is an apocalyptic number.

It is an amenable number.

139304731264 is a deficient number, since it is larger than the sum of its proper divisors (138483782336).

139304731264 is a wasteful number, since it uses less digits than its factorization.

139304731264 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1048520 (or 1048508 counting only the distinct ones).

The product of its (nonzero) digits is 326592, while the sum is 43.

The spelling of 139304731264 in words is "one hundred thirty-nine billion, three hundred four million, seven hundred thirty-one thousand, two hundred sixty-four".