100388722028 has 24 divisors (see below), whose sum is σ = 200991773472. Its totient is φ = 42977810304.

The previous prime is 100388721991. The next prime is 100388722039. The reversal of 100388722028 is 820227883001.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1886951 + ... + 1939422.

It is an arithmetic number, because the mean of its divisors is an integer number (8374657228).

Almost surely, 2^100388722028 is an apocalyptic number.

It is an amenable number.

100388722028 is an abundant number, since it is smaller than the sum of its proper divisors (100603051444).

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

100388722028 is a wasteful number, since it uses less digits than its factorization.

100388722028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3827321 (or 3827319 counting only the distinct ones).

The product of its (nonzero) digits is 86016, while the sum is 41.

The spelling of 100388722028 in words is "one hundred billion, three hundred eighty-eight million, seven hundred twenty-two thousand, twenty-eight".