21792574265 has 64 divisors (see below), whose sum is σ = 33054842880. Its totient is φ = 13397936640.

The previous prime is 21792574253. The next prime is 21792574361. The reversal of 21792574265 is 56247529712.

It is not a de Polignac number, because 21792574265 - 2⁴ = 21792574249 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 22168964 + ... + 22169946.

It is an arithmetic number, because the mean of its divisors is an integer number (516481920).

Almost surely, 2^21792574265 is an apocalyptic number.

It is an amenable number.

21792574265 is a deficient number, since it is larger than the sum of its proper divisors (11262268615).

21792574265 is a wasteful number, since it uses less digits than its factorization.

21792574265 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1742.

The product of its digits is 2116800, while the sum is 50.

The spelling of 21792574265 in words is "twenty-one billion, seven hundred ninety-two million, five hundred seventy-four thousand, two hundred sixty-five".