631819540740432 has 160 divisors (see below), whose sum is σ = 1823538808903680. Its totient is φ = 186894890560000.

The previous prime is 631819540740403. The next prime is 631819540740511. The reversal of 631819540740432 is 234047045918136.

631819540740432 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×631819540740432² (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 79648932 + ... + 87221507.

It is an arithmetic number, because the mean of its divisors is an integer number (11397117555648).

It is a 1-persistent number, because it is pandigital, but 2⋅631819540740432 = 1263639081480864 is not.

Almost surely, 2^{631819540740432} is an apocalyptic number.

It is an amenable number.

631819540740432 is an abundant number, since it is smaller than the sum of its proper divisors (1191719268163248).

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

631819540740432 is a wasteful number, since it uses less digits than its factorization.

631819540740432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 166870633 (or 166870627 counting only the distinct ones).

The product of its (nonzero) digits is 17418240, while the sum is 57.

The spelling of 631819540740432 in words is "six hundred thirty-one trillion, eight hundred nineteen billion, five hundred forty million, seven hundred forty thousand, four hundred thirty-two".