20870268844 has 12 divisors (see below), whose sum is σ = 36712210024. Its totient is φ = 10381065984.

The previous prime is 20870268829. The next prime is 20870268863. The reversal of 20870268844 is 44886207802.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13516242 + ... + 13517785.

Almost surely, 2^20870268844 is an apocalyptic number.

It is an amenable number.

20870268844 is a deficient number, since it is larger than the sum of its proper divisors (15841941180).

20870268844 is a wasteful number, since it uses less digits than its factorization.

20870268844 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27034224 (or 27034222 counting only the distinct ones).

The product of its (nonzero) digits is 1376256, while the sum is 49.

The spelling of 20870268844 in words is "twenty billion, eight hundred seventy million, two hundred sixty-eight thousand, eight hundred forty-four".