31308328077832 has 32 divisors (see below), whose sum is σ = 63236017756800. Its totient is φ = 14446048233024.

The previous prime is 31308328077751. The next prime is 31308328077881. The reversal of 31308328077832 is 23877082380313.

It is a super-2 number, since 2×31308328077832² (a number of 28 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40756608 + ... + 41517679.

It is an arithmetic number, because the mean of its divisors is an integer number (1976125554900).

Almost surely, 2^{31308328077832} is an apocalyptic number.

It is an amenable number.

31308328077832 is an abundant number, since it is smaller than the sum of its proper divisors (31927689678968).

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

31308328077832 is a wasteful number, since it uses less digits than its factorization.

31308328077832 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82277965 (or 82277961 counting only the distinct ones).

The product of its (nonzero) digits is 8128512, while the sum is 55.

The spelling of 31308328077832 in words is "thirty-one trillion, three hundred eight billion, three hundred twenty-eight million, seventy-seven thousand, eight hundred thirty-two".