631301494368 has 48 divisors (see below), whose sum is σ = 1657248583536. Its totient is φ = 210423398400.

The previous prime is 631301494349. The next prime is 631301494393. The reversal of 631301494368 is 863494103136.

It is a tau number, because it is divible by the number of its divisors (48).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1921480 + ... + 2225912.

It is an arithmetic number, because the mean of its divisors is an integer number (34526012157).

Almost surely, 2^631301494368 is an apocalyptic number.

It is an amenable number.

631301494368 is an abundant number, since it is smaller than the sum of its proper divisors (1025947089168).

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

631301494368 is a wasteful number, since it uses less digits than its factorization.

631301494368 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 326047 (or 326039 counting only the distinct ones).

The product of its (nonzero) digits is 1119744, while the sum is 48.

The spelling of 631301494368 in words is "six hundred thirty-one billion, three hundred one million, four hundred ninety-four thousand, three hundred sixty-eight".