631032172892 has 24 divisors (see below), whose sum is σ = 1204975793280. Its totient is φ = 286766613360.

The previous prime is 631032172891. The next prime is 631032172937. The reversal of 631032172892 is 298271230136.

It is a happy number.

631032172892 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-3 number, since 3×631032172892³ (a number of 36 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (44).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (631032172891) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1461728 + ... + 1843559.

It is an arithmetic number, because the mean of its divisors is an integer number (50207324720).

Almost surely, 2^631032172892 is an apocalyptic number.

It is an amenable number.

631032172892 is a deficient number, since it is larger than the sum of its proper divisors (573943620388).

631032172892 is a wasteful number, since it uses less digits than its factorization.

631032172892 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3309641 (or 3309639 counting only the distinct ones).

The product of its (nonzero) digits is 217728, while the sum is 44.

The spelling of 631032172892 in words is "six hundred thirty-one billion, thirty-two million, one hundred seventy-two thousand, eight hundred ninety-two".