20900734074 has 40 divisors (see below), whose sum is σ = 51090687648. Its totient is φ = 6333555240.

The previous prime is 20900734039. The next prime is 20900734093. The reversal of 20900734074 is 47043700902.

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, 5862622 + ... + 5866185.

Almost surely, 2^20900734074 is an apocalyptic number.

20900734074 is an abundant number, since it is smaller than the sum of its proper divisors (30189953574).

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

20900734074 is a wasteful number, since it uses less digits than its factorization.

20900734074 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11728832 (or 11728823 counting only the distinct ones).

The product of its (nonzero) digits is 42336, while the sum is 36.

The spelling of 20900734074 in words is "twenty billion, nine hundred million, seven hundred thirty-four thousand, seventy-four".