63915304992 has 768 divisors, whose sum is σ = 229939347456. Its totient is φ = 15054336000.

The previous prime is 63915304949. The next prime is 63915305057. The reversal of 63915304992 is 29940351936.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 353123142 + ... + 353123322.

It is an arithmetic number, because the mean of its divisors is an integer number (299400192).

Almost surely, 2^63915304992 is an apocalyptic number.

63915304992 is a gapful number since it is divisible by the number (62) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 63915304992, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (114969673728).

63915304992 is an abundant number, since it is smaller than the sum of its proper divisors (166024042464).

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

63915304992 is a wasteful number, since it uses less digits than its factorization.

63915304992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 333 (or 325 counting only the distinct ones).

The product of its (nonzero) digits is 1574640, while the sum is 51.

The spelling of 63915304992 in words is "sixty-three billion, nine hundred fifteen million, three hundred four thousand, nine hundred ninety-two".