631409332416 has 28 divisors (see below), whose sum is σ = 1670603859192. Its totient is φ = 210469777408.

The previous prime is 631409332381. The next prime is 631409332457. The reversal of 631409332416 is 614233904136.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1644294945 + ... + 1644295328.

Almost surely, 2^631409332416 is an apocalyptic number.

It is an amenable number.

631409332416 is an abundant number, since it is smaller than the sum of its proper divisors (1039194526776).

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

631409332416 is a wasteful number, since it uses less digits than its factorization.

631409332416 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3288590288 (or 3288590278 counting only the distinct ones).

The product of its (nonzero) digits is 279936, while the sum is 42.

The spelling of 631409332416 in words is "six hundred thirty-one billion, four hundred nine million, three hundred thirty-two thousand, four hundred sixteen".