20627806875 has 80 divisors (see below), whose sum is σ = 38207769600. Its totient is φ = 9827280000.

The previous prime is 20627806873. The next prime is 20627806907. The reversal of 20627806875 is 57860872602.

It is a happy number.

It is not a de Polignac number, because 20627806875 - 2¹ = 20627806873 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20627806873) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 741976 + ... + 769274.

It is an arithmetic number, because the mean of its divisors is an integer number (477597120).

Almost surely, 2^20627806875 is an apocalyptic number.

20627806875 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

20627806875 is a deficient number, since it is larger than the sum of its proper divisors (17579962725).

20627806875 is a wasteful number, since it uses less digits than its factorization.

20627806875 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27366 (or 27351 counting only the distinct ones).

The product of its (nonzero) digits is 2257920, while the sum is 51.

The spelling of 20627806875 in words is "twenty billion, six hundred twenty-seven million, eight hundred six thousand, eight hundred seventy-five".