63173128013500 has 48 divisors (see below), whose sum is σ = 138405348873792. Its totient is φ = 25189537416000.

The previous prime is 63173128013473. The next prime is 63173128013519. The reversal of 63173128013500 is 531082137136.

It is a happy number.

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, 199125816 + ... + 199442815.

It is an arithmetic number, because the mean of its divisors is an integer number (2883444768204).

Almost surely, 2^{63173128013500} is an apocalyptic number.

It is an amenable number.

63173128013500 is an abundant number, since it is smaller than the sum of its proper divisors (75232220860292).

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

63173128013500 is a wasteful number, since it uses less digits than its factorization.

63173128013500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 398568967 (or 398568955 counting only the distinct ones).

The product of its (nonzero) digits is 90720, while the sum is 40.

The spelling of 63173128013500 in words is "sixty-three trillion, one hundred seventy-three billion, one hundred twenty-eight million, thirteen thousand, five hundred".