21060107579 has 16 divisors (see below), whose sum is σ = 24866764800. Its totient is φ = 17453983680.

The previous prime is 21060107557. The next prime is 21060107587. The reversal of 21060107579 is 97570106012.

It is not a de Polignac number, because 21060107579 - 2²⁸ = 20791672123 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21060107539) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 210647 + ... + 294095.

It is an arithmetic number, because the mean of its divisors is an integer number (1554172800).

Almost surely, 2^21060107579 is an apocalyptic number.

21060107579 is a deficient number, since it is larger than the sum of its proper divisors (3806657221).

21060107579 is a wasteful number, since it uses less digits than its factorization.

21060107579 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84650.

The product of its (nonzero) digits is 26460, while the sum is 38.

The spelling of 21060107579 in words is "twenty-one billion, sixty million, one hundred seven thousand, five hundred seventy-nine".