100444638870 has 40 divisors (see below), whose sum is σ = 270084475584. Its totient is φ = 26785236816.

The previous prime is 100444638823. The next prime is 100444638883. The reversal of 100444638870 is 78836444001.

100444638870 is a `hidden beast` number, since 1 + 0 + 0 + 4 + 4 + 4 + 638 + 8 + 7 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

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, 62002054 + ... + 62003673.

Almost surely, 2^100444638870 is an apocalyptic number.

100444638870 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

100444638870 is an abundant number, since it is smaller than the sum of its proper divisors (169639836714).

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

100444638870 is a wasteful number, since it uses less digits than its factorization.

100444638870 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 124005746 (or 124005737 counting only the distinct ones).

The product of its (nonzero) digits is 516096, while the sum is 45.

The spelling of 100444638870 in words is "one hundred billion, four hundred forty-four million, six hundred thirty-eight thousand, eight hundred seventy".