20775868207 has 8 divisors (see below), whose sum is σ = 21449526912. Its totient is φ = 20102426400.

The previous prime is 20775868199. The next prime is 20775868219. The reversal of 20775868207 is 70286857702.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20775868207 - 2³ = 20775868199 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20775818207) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 153093 + ... + 254929.

It is an arithmetic number, because the mean of its divisors is an integer number (2681190864).

Almost surely, 2^20775868207 is an apocalyptic number.

20775868207 is a deficient number, since it is larger than the sum of its proper divisors (673658705).

20775868207 is a wasteful number, since it uses less digits than its factorization.

20775868207 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108449.

The product of its (nonzero) digits is 2634240, while the sum is 52.

The spelling of 20775868207 in words is "twenty billion, seven hundred seventy-five million, eight hundred sixty-eight thousand, two hundred seven".