31368666544 has 10 divisors (see below), whose sum is σ = 60776791460. Its totient is φ = 15684333264.

The previous prime is 31368666523. The next prime is 31368666559. The reversal of 31368666544 is 44566686313.

It is a junction number, because it is equal to n+sod(n) for n = 31368666491 and 31368666500.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 980270814 + ... + 980270845.

It is an arithmetic number, because the mean of its divisors is an integer number (6077679146).

Almost surely, 2^31368666544 is an apocalyptic number.

It is an amenable number.

31368666544 is a deficient number, since it is larger than the sum of its proper divisors (29408124916).

31368666544 is a wasteful number, since it uses less digits than its factorization.

31368666544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1960541667 (or 1960541661 counting only the distinct ones).

The product of its digits is 7464960, while the sum is 52.

The spelling of 31368666544 in words is "thirty-one billion, three hundred sixty-eight million, six hundred sixty-six thousand, five hundred forty-four".