63431075376 has 120 divisors (see below), whose sum is σ = 194922930384. Its totient is φ = 19899924480.

The previous prime is 63431075353. The next prime is 63431075381. The reversal of 63431075376 is 67357013436.

It is a happy number.

63431075376 is a `hidden beast` number, since 6 + 3 + 4 + 3 + 107 + 537 + 6 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 413745 + ... + 545936.

Almost surely, 2^63431075376 is an apocalyptic number.

It is an amenable number.

63431075376 is an abundant number, since it is smaller than the sum of its proper divisors (131491855008).

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

63431075376 is a wasteful number, since it uses less digits than its factorization.

63431075376 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 959721 (or 959703 counting only the distinct ones).

The product of its (nonzero) digits is 952560, while the sum is 45.

The spelling of 63431075376 in words is "sixty-three billion, four hundred thirty-one million, seventy-five thousand, three hundred seventy-six".