18870436622 has 32 divisors (see below), whose sum is σ = 29837009664. Its totient is φ = 8938425600.

The previous prime is 18870436621. The next prime is 18870436633. The reversal of 18870436622 is 22663407881.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18870436621) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1508618 + ... + 1521074.

It is an arithmetic number, because the mean of its divisors is an integer number (932406552).

Almost surely, 2^18870436622 is an apocalyptic number.

18870436622 is a deficient number, since it is larger than the sum of its proper divisors (10966573042).

18870436622 is a wasteful number, since it uses less digits than its factorization.

18870436622 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13004.

The product of its (nonzero) digits is 774144, while the sum is 47.

The spelling of 18870436622 in words is "eighteen billion, eight hundred seventy million, four hundred thirty-six thousand, six hundred twenty-two".