20848860842 has 16 divisors (see below), whose sum is σ = 31528463112. Its totient is φ = 10339503360.

The previous prime is 20848860839. The next prime is 20848860859. The reversal of 20848860842 is 24806884802.

It can be written as a sum of positive squares in 4 ways, for example, as 18596504161 + 2252356681 = 136369^2 + 47459^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 294992 + ... + 358772.

Almost surely, 2^20848860842 is an apocalyptic number.

20848860842 is a deficient number, since it is larger than the sum of its proper divisors (10679602270).

20848860842 is a wasteful number, since it uses less digits than its factorization.

20848860842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65113.

The product of its (nonzero) digits is 1572864, while the sum is 50.

The spelling of 20848860842 in words is "twenty billion, eight hundred forty-eight million, eight hundred sixty thousand, eight hundred forty-two".