631312568748 has 36 divisors (see below), whose sum is σ = 1605982341600. Its totient is φ = 209097154656.

The previous prime is 631312568743. The next prime is 631312568749. The reversal of 631312568748 is 847865213136.

631312568748 is a `hidden beast` number, since 6 + 3 + 1 + 3 + 1 + 2 + 568 + 74 + 8 = 666.

631312568748 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (36).

It is a junction number, because it is equal to n+sod(n) for n = 631312568694 and 631312568703.

It is not an unprimeable number, because it can be changed into a prime (631312568743) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 55842948 + ... + 55854251.

It is an arithmetic number, because the mean of its divisors is an integer number (44610620600).

Almost surely, 2^631312568748 is an apocalyptic number.

It is an amenable number.

631312568748 is an abundant number, since it is smaller than the sum of its proper divisors (974669772852).

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

631312568748 is a wasteful number, since it uses less digits than its factorization.

631312568748 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111697366 (or 111697361 counting only the distinct ones).

The product of its digits is 5806080, while the sum is 54.

The spelling of 631312568748 in words is "six hundred thirty-one billion, three hundred twelve million, five hundred sixty-eight thousand, seven hundred forty-eight".