631983349012 has 12 divisors (see below), whose sum is σ = 1119970492480. Its totient is φ = 311991779736.

The previous prime is 631983349009. The next prime is 631983349103. The reversal of 631983349012 is 210943389136.

It is a super-2 number, since 2×631983349012² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

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, 999973338 + ... + 999973969.

Almost surely, 2^631983349012 is an apocalyptic number.

It is an amenable number.

631983349012 is a deficient number, since it is larger than the sum of its proper divisors (487987143468).

631983349012 is a wasteful number, since it uses less digits than its factorization.

631983349012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1999947390 (or 1999947388 counting only the distinct ones).

The product of its (nonzero) digits is 839808, while the sum is 49.

The spelling of 631983349012 in words is "six hundred thirty-one billion, nine hundred eighty-three million, three hundred forty-nine thousand, twelve".