20867834274 has 32 divisors (see below), whose sum is σ = 47713674240. Its totient is φ = 5960267472.

The previous prime is 20867834269. The next prime is 20867834293. The reversal of 20867834274 is 47243876802.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 48907 + ... + 210065.

It is an arithmetic number, because the mean of its divisors is an integer number (1491052320).

Almost surely, 2^20867834274 is an apocalyptic number.

20867834274 is an abundant number, since it is smaller than the sum of its proper divisors (26845839966).

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

20867834274 is a wasteful number, since it uses less digits than its factorization.

20867834274 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 164254.

The product of its (nonzero) digits is 3612672, while the sum is 51.

The spelling of 20867834274 in words is "twenty billion, eight hundred sixty-seven million, eight hundred thirty-four thousand, two hundred seventy-four".