31894713802 has 16 divisors (see below), whose sum is σ = 54678977280. Its totient is φ = 13668581808.

The previous prime is 31894713787. The next prime is 31894713803. The reversal of 31894713802 is 20831749813.

It is a super-2 number, since 2×31894713802² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (31894713803) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 534303 + ... + 590989.

It is an arithmetic number, because the mean of its divisors is an integer number (3417436080).

Almost surely, 2^31894713802 is an apocalyptic number.

31894713802 is a deficient number, since it is larger than the sum of its proper divisors (22784263478).

31894713802 is a wasteful number, since it uses less digits than its factorization.

31894713802 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96885.

The product of its (nonzero) digits is 290304, while the sum is 46.

The spelling of 31894713802 in words is "thirty-one billion, eight hundred ninety-four million, seven hundred thirteen thousand, eight hundred two".