31923494407744 has 63 divisors (see below), whose sum is σ = 66224360568667. Its totient is φ = 15267260987264.

The previous prime is 31923494407691. The next prime is 31923494407747. The reversal of 31923494407744 is 44770449432913.

The square root of 31923494407744 is 5650088.

It is a perfect power (a square), and thus also a powerful number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31923494407747) by changing a digit.

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 8 ways as a sum of consecutive naturals, for example, 1039600839 + ... + 1039631545.

Almost surely, 2^{31923494407744} is an apocalyptic number.

31923494407744 is the 5650088-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 31923494407744

31923494407744 is an abundant number, since it is smaller than the sum of its proper divisors (34300866160923).

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

31923494407744 is an frugal number, since it uses more digits than its factorization.

31923494407744 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61472 (or 30732 counting only the distinct ones).

The product of its (nonzero) digits is 73156608, while the sum is 61.

The spelling of 31923494407744 in words is "thirty-one trillion, nine hundred twenty-three billion, four hundred ninety-four million, four hundred seven thousand, seven hundred forty-four".