21410255679 has 8 divisors (see below), whose sum is σ = 29467878912. Its totient is φ = 13813068120.

The previous prime is 21410255677. The next prime is 21410255681. The reversal of 21410255679 is 97655201412.

It is an interprime number because it is at equal distance from previous prime (21410255677) and next prime (21410255681).

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

It is not a de Polignac number, because 21410255679 - 2¹ = 21410255677 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 21410255679.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21410255677) 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, 115108809 + ... + 115108994.

It is an arithmetic number, because the mean of its divisors is an integer number (3683484864).

Almost surely, 2^21410255679 is an apocalyptic number.

21410255679 is a deficient number, since it is larger than the sum of its proper divisors (8057623233).

21410255679 is a wasteful number, since it uses less digits than its factorization.

21410255679 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 230217837.

The product of its (nonzero) digits is 151200, while the sum is 42.

The spelling of 21410255679 in words is "twenty-one billion, four hundred ten million, two hundred fifty-five thousand, six hundred seventy-nine".