31241437897992 has 64 divisors (see below), whose sum is σ = 89263932286080. Its totient is φ = 8925856998912.

The previous prime is 31241437897991. The next prime is 31241437898009. The reversal of 31241437897992 is 29979873414213.

It is not an unprimeable number, because it can be changed into a prime (31241437897991) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2850708 + ... + 8402940.

It is an arithmetic number, because the mean of its divisors is an integer number (1394748941970).

Almost surely, 2^{31241437897992} is an apocalyptic number.

It is an amenable number.

31241437897992 is an abundant number, since it is smaller than the sum of its proper divisors (58022494388088).

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

31241437897992 is a wasteful number, since it uses less digits than its factorization.

31241437897992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5585742 (or 5585738 counting only the distinct ones).

The product of its digits is 164602368, while the sum is 69.

The spelling of 31241437897992 in words is "thirty-one trillion, two hundred forty-one billion, four hundred thirty-seven million, eight hundred ninety-seven thousand, nine hundred ninety-two".