631110868 has 12 divisors (see below), whose sum is σ = 1131381972. Its totient is φ = 307858880.

The previous prime is 631110841. The next prime is 631110889. The reversal of 631110868 is 868011136.

It can be written as a sum of positive squares in 2 ways, for example, as 145878084 + 485232784 = 12078^2 + 22028^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1923955 + ... + 1924282.

It is an arithmetic number, because the mean of its divisors is an integer number (94281831).

Almost surely, 2^631110868 is an apocalyptic number.

It is an amenable number.

631110868 is a deficient number, since it is larger than the sum of its proper divisors (500271104).

631110868 is a wasteful number, since it uses less digits than its factorization.

631110868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3848282 (or 3848280 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 34.

The square root of 631110868 is about 25121.9200699310. The cubic root of 631110868 is about 857.7654573422.

The spelling of 631110868 in words is "six hundred thirty-one million, one hundred ten thousand, eight hundred sixty-eight".