63138132500 has 60 divisors (see below), whose sum is σ = 138264366240. Its totient is φ = 25219788000.

The previous prime is 63138132479. The next prime is 63138132511. The reversal of 63138132500 is 523183136.

63138132500 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 1800131 + ... + 1834869.

It is an arithmetic number, because the mean of its divisors is an integer number (2304406104).

Almost surely, 2^63138132500 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 63138132500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (69132183120).

63138132500 is an abundant number, since it is smaller than the sum of its proper divisors (75126233740).

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

63138132500 is a wasteful number, since it uses less digits than its factorization.

63138132500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35490 (or 35473 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 32.

The spelling of 63138132500 in words is "sixty-three billion, one hundred thirty-eight million, one hundred thirty-two thousand, five hundred".