31974242454 has 160 divisors (see below), whose sum is σ = 94026873600. Its totient is φ = 7867834560.

The previous prime is 31974242441. The next prime is 31974242491. The reversal of 31974242454 is 45424247913.

31974242454 is a `hidden beast` number, since 3 + 197 + 4 + 2 + 4 + 2 + 454 = 666.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 169552 + ... + 304460.

It is an arithmetic number, because the mean of its divisors is an integer number (587667960).

Almost surely, 2^31974242454 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 31974242454, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (47013436800).

31974242454 is an abundant number, since it is smaller than the sum of its proper divisors (62052631146).

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

31974242454 is a wasteful number, since it uses less digits than its factorization.

31974242454 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134960 (or 134951 counting only the distinct ones).

The product of its digits is 967680, while the sum is 45.

The spelling of 31974242454 in words is "thirty-one billion, nine hundred seventy-four million, two hundred forty-two thousand, four hundred fifty-four".