631276456 has 8 divisors (see below), whose sum is σ = 1183643370. Its totient is φ = 315638224.

The previous prime is 631276447. The next prime is 631276483. The reversal of 631276456 is 654672136.

It can be written as a sum of positive squares in only one way, i.e., 354719556 + 276556900 = 18834^2 + 16630^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39454771 + ... + 39454786.

Almost surely, 2^631276456 is an apocalyptic number.

It is an amenable number.

631276456 is a deficient number, since it is larger than the sum of its proper divisors (552366914).

631276456 is a wasteful number, since it uses less digits than its factorization.

631276456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78909563 (or 78909559 counting only the distinct ones).

The product of its digits is 181440, while the sum is 40.

The square root of 631276456 is about 25125.2155413640. The cubic root of 631276456 is about 857.8404696489.

The spelling of 631276456 in words is "six hundred thirty-one million, two hundred seventy-six thousand, four hundred fifty-six".