631474275290 has 16 divisors (see below), whose sum is σ = 1175848651080. Its totient is φ = 243879720000.

The previous prime is 631474275281. The next prime is 631474275373. The reversal of 631474275290 is 92572474136.

It can be written as a sum of positive squares in 4 ways, for example, as 602360702161 + 29113573129 = 776119^2 + 170627^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1088748461 + ... + 1088749040.

Almost surely, 2^631474275290 is an apocalyptic number.

631474275290 is a deficient number, since it is larger than the sum of its proper divisors (544374375790).

631474275290 is a wasteful number, since it uses less digits than its factorization.

631474275290 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2177497537.

The product of its (nonzero) digits is 2540160, while the sum is 50.

The spelling of 631474275290 in words is "six hundred thirty-one billion, four hundred seventy-four million, two hundred seventy-five thousand, two hundred ninety".