31197168534 has 32 divisors (see below), whose sum is σ = 71328370176. Its totient is φ = 8910907200.

The previous prime is 31197168473. The next prime is 31197168547. The reversal of 31197168534 is 43586179113.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 42834 + ... + 253434.

It is an arithmetic number, because the mean of its divisors is an integer number (2229011568).

Almost surely, 2^31197168534 is an apocalyptic number.

31197168534 is an abundant number, since it is smaller than the sum of its proper divisors (40131201642).

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

31197168534 is a wasteful number, since it uses less digits than its factorization.

31197168534 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 214140.

The product of its digits is 544320, while the sum is 48.

The spelling of 31197168534 in words is "thirty-one billion, one hundred ninety-seven million, one hundred sixty-eight thousand, five hundred thirty-four".