18450739072339 has 8 divisors (see below), whose sum is σ = 21086639804160. Its totient is φ = 15814858556616.

The previous prime is 18450739072331. The next prime is 18450739072373. The reversal of 18450739072339 is 93327093705481.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 18450739072339 - 2³ = 18450739072331 is a prime.

It is not an unprimeable number, because it can be changed into a prime (18450739072331) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3045049 + ... + 6795130.

It is an arithmetic number, because the mean of its divisors is an integer number (2635829975520).

Almost surely, 2^{18450739072339} is an apocalyptic number.

18450739072339 is a deficient number, since it is larger than the sum of its proper divisors (2635900731821).

18450739072339 is an equidigital number, since it uses as much as digits as its factorization.

18450739072339 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10108049.

The product of its (nonzero) digits is 34292160, while the sum is 61.

The spelling of 18450739072339 in words is "eighteen trillion, four hundred fifty billion, seven hundred thirty-nine million, seventy-two thousand, three hundred thirty-nine".