31144994762 has 32 divisors (see below), whose sum is σ = 54498355200. Its totient is φ = 13343613360.

The previous prime is 31144994743. The next prime is 31144994767. The reversal of 31144994762 is 26749944113.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 31144994762.

It is not an unprimeable number, because it can be changed into a prime (31144994767) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 3176087 + ... + 3185877.

It is an arithmetic number, because the mean of its divisors is an integer number (1703073600).

Almost surely, 2^31144994762 is an apocalyptic number.

31144994762 is a deficient number, since it is larger than the sum of its proper divisors (23353360438).

31144994762 is an equidigital number, since it uses as much as digits as its factorization.

31144994762 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14451 (or 14437 counting only the distinct ones).

The product of its digits is 1306368, while the sum is 50.

The spelling of 31144994762 in words is "thirty-one billion, one hundred forty-four million, nine hundred ninety-four thousand, seven hundred sixty-two".