631996380324 has 81 divisors (see below), whose sum is σ = 1642348908291. Its totient is φ = 204914560320.

The previous prime is 631996380317. The next prime is 631996380347. The reversal of 631996380324 is 423083699136.

The square root of 631996380324 is 794982.

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

631996380324 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 390687502500 + 241308877824 = 625050^2 + 491232^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 176484214 + ... + 176487794.

Almost surely, 2^631996380324 is an apocalyptic number.

631996380324 is the 794982-nd square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 631996380324

631996380324 is an abundant number, since it is smaller than the sum of its proper divisors (1010352527967).

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

631996380324 is an equidigital number, since it uses as much as digits as its factorization.

631996380324 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7246 (or 3623 counting only the distinct ones).

The product of its (nonzero) digits is 5038848, while the sum is 54.

The spelling of 631996380324 in words is "six hundred thirty-one billion, nine hundred ninety-six million, three hundred eighty thousand, three hundred twenty-four".