100043574138 has 12 divisors (see below), whose sum is σ = 216761077338. Its totient is φ = 33347858040.

The previous prime is 100043574133. The next prime is 100043574307. The reversal of 100043574138 is 831475340001.

It is a happy number.

100043574138 is a `hidden beast` number, since 10 + 0 + 0 + 43 + 574 + 1 + 38 = 666.

It can be written as a sum of positive squares in only one way, i.e., 96688036809 + 3355537329 = 310947^2 + 57927^2 .

It is not an unprimeable number, because it can be changed into a prime (100043574133) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2778988153 + ... + 2778988188.

Almost surely, 2^100043574138 is an apocalyptic number.

100043574138 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

100043574138 is an abundant number, since it is smaller than the sum of its proper divisors (116717503200).

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

100043574138 is a wasteful number, since it uses less digits than its factorization.

100043574138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5557976349 (or 5557976346 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 36.

The spelling of 100043574138 in words is "one hundred billion, forty-three million, five hundred seventy-four thousand, one hundred thirty-eight".