631734508764 has 36 divisors (see below), whose sum is σ = 1596963871776. Its totient is φ = 210567696768.

The previous prime is 631734508763. The next prime is 631734508831. The reversal of 631734508764 is 467805437136.

It is a happy number.

631734508764 is a `hidden beast` number, since 6 + 3 + 1 + 73 + 4 + 508 + 7 + 64 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a self number, because there is not a number n which added to its sum of digits gives 631734508764.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (631734508763) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 315277 + ... + 1167419.

Almost surely, 2^631734508764 is an apocalyptic number.

It is an amenable number.

631734508764 is an abundant number, since it is smaller than the sum of its proper divisors (965229363012).

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

631734508764 is a wasteful number, since it uses less digits than its factorization.

631734508764 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 872746 (or 872741 counting only the distinct ones).

The product of its (nonzero) digits is 10160640, while the sum is 54.

The spelling of 631734508764 in words is "six hundred thirty-one billion, seven hundred thirty-four million, five hundred eight thousand, seven hundred sixty-four".