20874791174 has 4 divisors (see below), whose sum is σ = 31312186764. Its totient is φ = 10437395586.

The previous prime is 20874791159. The next prime is 20874791183. The reversal of 20874791174 is 47119747802.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5218697792 + ... + 5218697795.

It is an arithmetic number, because the mean of its divisors is an integer number (7828046691).

Almost surely, 2^20874791174 is an apocalyptic number.

20874791174 is a deficient number, since it is larger than the sum of its proper divisors (10437395590).

20874791174 is a wasteful number, since it uses less digits than its factorization.

20874791174 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10437395589.

The product of its (nonzero) digits is 790272, while the sum is 50.

The spelling of 20874791174 in words is "twenty billion, eight hundred seventy-four million, seven hundred ninety-one thousand, one hundred seventy-four".