63317749940928 has 224 divisors, whose sum is σ = 218483814796800. Its totient is φ = 17601845419008.

The previous prime is 63317749940873. The next prime is 63317749941013. The reversal of 63317749940928 is 82904994771336.

It is a happy number.

63317749940928 is a `hidden beast` number, since 6 + 3 + 3 + 1 + 7 + 7 + 499 + 40 + 92 + 8 = 666.

It is a tau number, because it is divible by the number of its divisors (224).

It is a Harshad number since it is a multiple of its sum of digits (72).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 70290318 + ... + 71185421.

It is an arithmetic number, because the mean of its divisors is an integer number (975374173200).

Almost surely, 2^{63317749940928} is an apocalyptic number.

It is an amenable number.

63317749940928 is an abundant number, since it is smaller than the sum of its proper divisors (155166064855872).

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

63317749940928 is a wasteful number, since it uses less digits than its factorization.

63317749940928 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 141475804 (or 141475788 counting only the distinct ones).

The product of its (nonzero) digits is 493807104, while the sum is 72.

The spelling of 63317749940928 in words is "sixty-three trillion, three hundred seventeen billion, seven hundred forty-nine million, nine hundred forty thousand, nine hundred twenty-eight".