31284667056 has 40 divisors (see below), whose sum is σ = 85072342720. Its totient is φ = 9879368256.

The previous prime is 31284667039. The next prime is 31284667081. The reversal of 31284667056 is 65076648213.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a junction number, because it is equal to n+sod(n) for n = 31284666996 and 31284667014.

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, 17150770 + ... + 17152593.

It is an arithmetic number, because the mean of its divisors is an integer number (2126808568).

Almost surely, 2^31284667056 is an apocalyptic number.

It is an amenable number.

31284667056 is an abundant number, since it is smaller than the sum of its proper divisors (53787675664).

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

31284667056 is a wasteful number, since it uses less digits than its factorization.

31284667056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34303393 (or 34303387 counting only the distinct ones).

The product of its (nonzero) digits is 1451520, while the sum is 48.

The spelling of 31284667056 in words is "thirty-one billion, two hundred eighty-four million, six hundred sixty-seven thousand, fifty-six".