31812757147004 has 72 divisors (see below), whose sum is σ = 60564360502800. Its totient is φ = 14580561427200.

The previous prime is 31812757147001. The next prime is 31812757147043. The reversal of 31812757147004 is 40074175721813.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31812757147001) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 457827944 + ... + 457897424.

It is an arithmetic number, because the mean of its divisors is an integer number (841171673650).

Almost surely, 2^{31812757147004} is an apocalyptic number.

It is an amenable number.

31812757147004 is a deficient number, since it is larger than the sum of its proper divisors (28751603355796).

31812757147004 is a wasteful number, since it uses less digits than its factorization.

31812757147004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75835 (or 75802 counting only the distinct ones).

The product of its (nonzero) digits is 1317120, while the sum is 50.

The spelling of 31812757147004 in words is "thirty-one trillion, eight hundred twelve billion, seven hundred fifty-seven million, one hundred forty-seven thousand, four".