31793811308 has 18 divisors (see below), whose sum is σ = 64723116276. Its totient is φ = 13625919048.

The previous prime is 31793811307. The next prime is 31793811319. The reversal of 31793811308 is 80311839713.

It is not an unprimeable number, because it can be changed into a prime (31793811307) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 81106466 + ... + 81106857.

It is an arithmetic number, because the mean of its divisors is an integer number (3595728682).

Almost surely, 2^31793811308 is an apocalyptic number.

It is an amenable number.

31793811308 is an abundant number, since it is smaller than the sum of its proper divisors (32929304968).

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

31793811308 is a wasteful number, since it uses less digits than its factorization.

31793811308 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 162213341 (or 162213332 counting only the distinct ones).

The product of its (nonzero) digits is 108864, while the sum is 44.

The spelling of 31793811308 in words is "thirty-one billion, seven hundred ninety-three million, eight hundred eleven thousand, three hundred eight".