18037881339 has 8 divisors (see below), whose sum is σ = 24054314832. Its totient is φ = 12023351040.

The previous prime is 18037881317. The next prime is 18037881383. The reversal of 18037881339 is 93318873081.

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

It is not a de Polignac number, because 18037881339 - 2⁸ = 18037881083 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 18037881291 and 18037881300.

It is not an unprimeable number, because it can be changed into a prime (18037881539) 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, 453534 + ... + 491699.

It is an arithmetic number, because the mean of its divisors is an integer number (3006789354).

Almost surely, 2^18037881339 is an apocalyptic number.

18037881339 is a deficient number, since it is larger than the sum of its proper divisors (6016433493).

18037881339 is an equidigital number, since it uses as much as digits as its factorization.

18037881339 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 951597.

The product of its (nonzero) digits is 870912, while the sum is 51.

The spelling of 18037881339 in words is "eighteen billion, thirty-seven million, eight hundred eighty-one thousand, three hundred thirty-nine".