31949310739956 has 24 divisors (see below), whose sum is σ = 78471991291680. Its totient is φ = 10089256023072.

The previous prime is 31949310739933. The next prime is 31949310739961. The reversal of 31949310739956 is 65993701394913.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 70064277711 + ... + 70064278166.

It is an arithmetic number, because the mean of its divisors is an integer number (3269666303820).

Almost surely, 2^{31949310739956} is an apocalyptic number.

It is an amenable number.

31949310739956 is an abundant number, since it is smaller than the sum of its proper divisors (46522680551724).

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

31949310739956 is a wasteful number, since it uses less digits than its factorization.

31949310739956 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 140128555903 (or 140128555901 counting only the distinct ones).

The product of its (nonzero) digits is 148803480, while the sum is 69.

The spelling of 31949310739956 in words is "thirty-one trillion, nine hundred forty-nine billion, three hundred ten million, seven hundred thirty-nine thousand, nine hundred fifty-six".