22871821697 has 4 divisors (see below), whose sum is σ = 22874145840. Its totient is φ = 22869497556.

The previous prime is 22871821681. The next prime is 22871821699. The reversal of 22871821697 is 79612817822.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 22871821697 - 2⁴ = 22871821681 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22871821699) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1147247 + ... + 1167012.

It is an arithmetic number, because the mean of its divisors is an integer number (5718536460).

Almost surely, 2^22871821697 is an apocalyptic number.

It is an amenable number.

22871821697 is a deficient number, since it is larger than the sum of its proper divisors (2324143).

22871821697 is an equidigital number, since it uses as much as digits as its factorization.

22871821697 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2324142.

The product of its digits is 1354752, while the sum is 53.

The spelling of 22871821697 in words is "twenty-two billion, eight hundred seventy-one million, eight hundred twenty-one thousand, six hundred ninety-seven".