631813300256 has 12 divisors (see below), whose sum is σ = 1243882434942. Its totient is φ = 315906650112.

The previous prime is 631813300253. The next prime is 631813300259. The reversal of 631813300256 is 652003318136.

It is an interprime number because it is at equal distance from previous prime (631813300253) and next prime (631813300259).

It can be written as a sum of positive squares in only one way, i.e., 624194803600 + 7618496656 = 790060^2 + 87284^2 .

It is not an unprimeable number, because it can be changed into a prime (631813300253) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9872082785 + ... + 9872082848.

Almost surely, 2^631813300256 is an apocalyptic number.

It is an amenable number.

631813300256 is a deficient number, since it is larger than the sum of its proper divisors (612069134686).

631813300256 is a wasteful number, since it uses less digits than its factorization.

631813300256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19744165643 (or 19744165635 counting only the distinct ones).

The product of its (nonzero) digits is 77760, while the sum is 38.

The spelling of 631813300256 in words is "six hundred thirty-one billion, eight hundred thirteen million, three hundred thousand, two hundred fifty-six".