21600760879 has 8 divisors (see below), whose sum is σ = 22096723968. Its totient is φ = 21106313400.

The previous prime is 21600760861. The next prime is 21600760897. The reversal of 21600760879 is 97806700612.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (21600760861) and next prime (21600760897).

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 21600760879 - 2²⁷ = 21466543151 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 (21600760829) 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, 350047 + ... + 407104.

It is an arithmetic number, because the mean of its divisors is an integer number (2762090496).

Almost surely, 2^21600760879 is an apocalyptic number.

21600760879 is a deficient number, since it is larger than the sum of its proper divisors (495963089).

21600760879 is an equidigital number, since it uses as much as digits as its factorization.

21600760879 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 757805.

The product of its (nonzero) digits is 254016, while the sum is 46.

The spelling of 21600760879 in words is "twenty-one billion, six hundred million, seven hundred sixty thousand, eight hundred seventy-nine".