63511013801328 has 80 divisors (see below), whose sum is σ = 178276530048000. Its totient is φ = 19409138334720.

The previous prime is 63511013801317. The next prime is 63511013801329. The reversal of 63511013801328 is 82310831011536.

It is a self number, because there is not a number n which added to its sum of digits gives 63511013801328.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63511013801329) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1123185753 + ... + 1123242296.

It is an arithmetic number, because the mean of its divisors is an integer number (2228456625600).

Almost surely, 2^{63511013801328} is an apocalyptic number.

It is an amenable number.

63511013801328 is an abundant number, since it is smaller than the sum of its proper divisors (114765516246672).

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

63511013801328 is a wasteful number, since it uses less digits than its factorization.

63511013801328 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2246428110 (or 2246428104 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 42.

The spelling of 63511013801328 in words is "sixty-three trillion, five hundred eleven billion, thirteen million, eight hundred one thousand, three hundred twenty-eight".