20858850712 has 64 divisors (see below), whose sum is σ = 48567859200. Its totient is φ = 8195800320.

The previous prime is 20858850679. The next prime is 20858850787. The reversal of 20858850712 is 21705885802.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 283213 + ... + 349180.

It is an arithmetic number, because the mean of its divisors is an integer number (758872800).

Almost surely, 2^20858850712 is an apocalyptic number.

It is an amenable number.

20858850712 is an abundant number, since it is smaller than the sum of its proper divisors (27709008488).

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

20858850712 is a wasteful number, since it uses less digits than its factorization.

20858850712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 632456 (or 632452 counting only the distinct ones).

The product of its (nonzero) digits is 358400, while the sum is 46.

The spelling of 20858850712 in words is "twenty billion, eight hundred fifty-eight million, eight hundred fifty thousand, seven hundred twelve".