63899934900 has 72 divisors (see below), whose sum is σ = 195759345600. Its totient is φ = 16037629440.

The previous prime is 63899934881. The next prime is 63899934907. The reversal of 63899934900 is 943999836.

63899934900 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (60).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63899934907) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6259600 + ... + 6269799.

It is an arithmetic number, because the mean of its divisors is an integer number (2718879800).

Almost surely, 2^63899934900 is an apocalyptic number.

63899934900 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

63899934900 is an abundant number, since it is smaller than the sum of its proper divisors (131859410700).

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

63899934900 is a wasteful number, since it uses less digits than its factorization.

63899934900 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12529433 (or 12529426 counting only the distinct ones).

The product of its (nonzero) digits is 11337408, while the sum is 60.

The spelling of 63899934900 in words is "sixty-three billion, eight hundred ninety-nine million, nine hundred thirty-four thousand, nine hundred".