18464472022 has 4 divisors (see below), whose sum is σ = 27696708036. Its totient is φ = 9232236010.

The previous prime is 18464472017. The next prime is 18464472031. The reversal of 18464472022 is 22027446481.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4616118004 + ... + 4616118007.

It is an arithmetic number, because the mean of its divisors is an integer number (6924177009).

Almost surely, 2^18464472022 is an apocalyptic number.

18464472022 is a deficient number, since it is larger than the sum of its proper divisors (9232236014).

18464472022 is an equidigital number, since it uses as much as digits as its factorization.

18464472022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9232236013.

The product of its (nonzero) digits is 172032, while the sum is 40.

The spelling of 18464472022 in words is "eighteen billion, four hundred sixty-four million, four hundred seventy-two thousand, twenty-two".