63111888711408 has 80 divisors (see below), whose sum is σ = 173548363622400. Its totient is φ = 19706136721920.

The previous prime is 63111888711379. The next prime is 63111888711481. The reversal of 63111888711408 is 80411788811136.

It is a super-2 number, since 2×63111888711408² (a number of 28 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (57).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 388692048 + ... + 388854383.

It is an arithmetic number, because the mean of its divisors is an integer number (2169354545280).

Almost surely, 2^{63111888711408} is an apocalyptic number.

It is an amenable number.

63111888711408 is an abundant number, since it is smaller than the sum of its proper divisors (110436474910992).

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

63111888711408 is a wasteful number, since it uses less digits than its factorization.

63111888711408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 777546550 (or 777546544 counting only the distinct ones).

The product of its (nonzero) digits is 2064384, while the sum is 57.

The spelling of 63111888711408 in words is "sixty-three trillion, one hundred eleven billion, eight hundred eighty-eight million, seven hundred eleven thousand, four hundred eight".