21060790575 has 24 divisors (see below), whose sum is σ = 37986009216. Its totient is φ = 10211292000.

The previous prime is 21060790567. The next prime is 21060790601. The reversal of 21060790575 is 57509706012.

It is not a de Polignac number, because 21060790575 - 2³ = 21060790567 is a prime.

It is a congruent number.

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, 12763291 + ... + 12764940.

It is an arithmetic number, because the mean of its divisors is an integer number (1582750384).

Almost surely, 2^21060790575 is an apocalyptic number.

21060790575 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

21060790575 is a deficient number, since it is larger than the sum of its proper divisors (16925218641).

21060790575 is a wasteful number, since it uses less digits than its factorization.

21060790575 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25528255 (or 25528250 counting only the distinct ones).

The product of its (nonzero) digits is 132300, while the sum is 42.

The spelling of 21060790575 in words is "twenty-one billion, sixty million, seven hundred ninety thousand, five hundred seventy-five".