63439369100 has 72 divisors (see below), whose sum is σ = 140513350320. Its totient is φ = 24855761920.

The previous prime is 63439369099. The next prime is 63439369127. The reversal of 63439369100 is 196393436.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 918992 + ... + 985608.

It is an arithmetic number, because the mean of its divisors is an integer number (1951574310).

Almost surely, 2^63439369100 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 63439369100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (70256675160).

63439369100 is an abundant number, since it is smaller than the sum of its proper divisors (77073981220).

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

63439369100 is a wasteful number, since it uses less digits than its factorization.

63439369100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66827 (or 66820 counting only the distinct ones).

The product of its (nonzero) digits is 314928, while the sum is 44.

The spelling of 63439369100 in words is "sixty-three billion, four hundred thirty-nine million, three hundred sixty-nine thousand, one hundred".