20044513186434 has 24 divisors (see below), whose sum is σ = 47377940259312. Its totient is φ = 6074094904920.

The previous prime is 20044513186309. The next prime is 20044513186457. The reversal of 20044513186434 is 43468131544002.

20044513186434 is a `hidden beast` number, since 2 + 0 + 0 + 4 + 4 + 5 + 131 + 86 + 434 = 666.

It is a super-2 number, since 2×20044513186434² (a number of 27 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 20044513186434.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 50617457344 + ... + 50617457739.

It is an arithmetic number, because the mean of its divisors is an integer number (1974080844138).

Almost surely, 2^{20044513186434} is an apocalyptic number.

20044513186434 is an abundant number, since it is smaller than the sum of its proper divisors (27333427072878).

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

20044513186434 is a wasteful number, since it uses less digits than its factorization.

20044513186434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101234915102 (or 101234915099 counting only the distinct ones).

The product of its (nonzero) digits is 1105920, while the sum is 45.

The spelling of 20044513186434 in words is "twenty trillion, forty-four billion, five hundred thirteen million, one hundred eighty-six thousand, four hundred thirty-four".