20927262975 has 12 divisors (see below), whose sum is σ = 34599741576. Its totient is φ = 11161206880.

The previous prime is 20927262971. The next prime is 20927262997. The reversal of 20927262975 is 57926272902.

It is not a de Polignac number, because 20927262975 - 2² = 20927262971 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20927262971) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 139515012 + ... + 139515161.

It is an arithmetic number, because the mean of its divisors is an integer number (2883311798).

Almost surely, 2^20927262975 is an apocalyptic number.

20927262975 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

20927262975 is a deficient number, since it is larger than the sum of its proper divisors (13672478601).

20927262975 is a wasteful number, since it uses less digits than its factorization.

20927262975 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 279030186 (or 279030181 counting only the distinct ones).

The product of its (nonzero) digits is 1905120, while the sum is 51.

The spelling of 20927262975 in words is "twenty billion, nine hundred twenty-seven million, two hundred sixty-two thousand, nine hundred seventy-five".