20626131927 has 4 divisors (see below), whose sum is σ = 27501509240. Its totient is φ = 13750754616.

The previous prime is 20626131919. The next prime is 20626131979. The reversal of 20626131927 is 72913162602.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 20626131927 - 2³ = 20626131919 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 (20626131997) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3437688652 + ... + 3437688657.

It is an arithmetic number, because the mean of its divisors is an integer number (6875377310).

Almost surely, 2^20626131927 is an apocalyptic number.

20626131927 is a deficient number, since it is larger than the sum of its proper divisors (6875377313).

20626131927 is an equidigital number, since it uses as much as digits as its factorization.

20626131927 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6875377312.

The product of its (nonzero) digits is 54432, while the sum is 39.

The spelling of 20626131927 in words is "twenty billion, six hundred twenty-six million, one hundred thirty-one thousand, nine hundred twenty-seven".