31146564236 has 12 divisors (see below), whose sum is σ = 54509487312. Its totient is φ = 15572425008.

The previous prime is 31146564223. The next prime is 31146564257. The reversal of 31146564236 is 63246564113.

It is a hoax number, since the sum of its digits (41) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 31146564193 and 31146564202.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 128720 + ... + 280823.

It is an arithmetic number, because the mean of its divisors is an integer number (4542457276).

Almost surely, 2^31146564236 is an apocalyptic number.

It is an amenable number.

31146564236 is a deficient number, since it is larger than the sum of its proper divisors (23362923076).

31146564236 is a wasteful number, since it uses less digits than its factorization.

31146564236 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 428560 (or 428558 counting only the distinct ones).

The product of its digits is 311040, while the sum is 41.

The spelling of 31146564236 in words is "thirty-one billion, one hundred forty-six million, five hundred sixty-four thousand, two hundred thirty-six".