31344551512 has 8 divisors (see below), whose sum is σ = 58771034100. Its totient is φ = 15672275752.

The previous prime is 31344551507. The next prime is 31344551543. The reversal of 31344551512 is 21515544313.

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×31344551512² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1959034462 + ... + 1959034477.

Almost surely, 2^31344551512 is an apocalyptic number.

It is an amenable number.

31344551512 is a deficient number, since it is larger than the sum of its proper divisors (27426482588).

31344551512 is a wasteful number, since it uses less digits than its factorization.

31344551512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3918068945 (or 3918068941 counting only the distinct ones).

The product of its digits is 36000, while the sum is 34.

The spelling of 31344551512 in words is "thirty-one billion, three hundred forty-four million, five hundred fifty-one thousand, five hundred twelve".