31354164438 has 32 divisors (see below), whose sum is σ = 68016503520. Its totient is φ = 9596682240.

The previous prime is 31354164437. The next prime is 31354164449. The reversal of 31354164438 is 83446145313.

It is a self number, because there is not a number n which added to its sum of digits gives 31354164438.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31354164437) 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 15 ways as a sum of consecutive naturals, for example, 3744523 + ... + 3752886.

It is an arithmetic number, because the mean of its divisors is an integer number (2125515735).

Almost surely, 2^31354164438 is an apocalyptic number.

31354164438 is an abundant number, since it is smaller than the sum of its proper divisors (36662339082).

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

31354164438 is a wasteful number, since it uses less digits than its factorization.

31354164438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7497472.

The product of its digits is 414720, while the sum is 42.

The spelling of 31354164438 in words is "thirty-one billion, three hundred fifty-four million, one hundred sixty-four thousand, four hundred thirty-eight".