22870435891 has 4 divisors (see below), whose sum is σ = 22871115784. Its totient is φ = 22869756000.

The previous prime is 22870435883. The next prime is 22870435921. The reversal of 22870435891 is 19853407822.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 22870435891 - 2³ = 22870435883 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22870435811) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 286710 + ... + 357691.

It is an arithmetic number, because the mean of its divisors is an integer number (5717778946).

Almost surely, 2^22870435891 is an apocalyptic number.

22870435891 is a deficient number, since it is larger than the sum of its proper divisors (679893).

22870435891 is an equidigital number, since it uses as much as digits as its factorization.

22870435891 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 679892.

The product of its (nonzero) digits is 967680, while the sum is 49.

The spelling of 22870435891 in words is "twenty-two billion, eight hundred seventy million, four hundred thirty-five thousand, eight hundred ninety-one".