18089139306 has 32 divisors (see below), whose sum is σ = 43778759040. Its totient is φ = 4864306176.

The previous prime is 18089139293. The next prime is 18089139311. The reversal of 18089139306 is 60393198081.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12666751 + ... + 12668178.

It is an arithmetic number, because the mean of its divisors is an integer number (1368086220).

Almost surely, 2^18089139306 is an apocalyptic number.

18089139306 is an abundant number, since it is smaller than the sum of its proper divisors (25689619734).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

18089139306 is a wasteful number, since it uses less digits than its factorization.

18089139306 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25334958.

The product of its (nonzero) digits is 279936, while the sum is 48.

The spelling of 18089139306 in words is "eighteen billion, eighty-nine million, one hundred thirty-nine thousand, three hundred six".