21677060275 has 24 divisors (see below), whose sum is σ = 29272501440. Its totient is φ = 15827792640.

The previous prime is 21677060257. The next prime is 21677060287. The reversal of 21677060275 is 57206077612.

It is not a de Polignac number, because 21677060275 - 2²⁵ = 21643505843 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 345787 + ... + 403636.

It is an arithmetic number, because the mean of its divisors is an integer number (1219687560).

Almost surely, 2^21677060275 is an apocalyptic number.

21677060275 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

21677060275 is a deficient number, since it is larger than the sum of its proper divisors (7595441165).

21677060275 is a wasteful number, since it uses less digits than its factorization.

21677060275 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 749535 (or 749530 counting only the distinct ones).

The product of its (nonzero) digits is 246960, while the sum is 43.

The spelling of 21677060275 in words is "twenty-one billion, six hundred seventy-seven million, sixty thousand, two hundred seventy-five".