18079240865 has 16 divisors (see below), whose sum is σ = 24853301760. Its totient is φ = 12367736640.

The previous prime is 18079240843. The next prime is 18079240897. The reversal of 18079240865 is 56804297081.

It is not a de Polignac number, because 18079240865 - 2¹⁸ = 18078978721 is a prime.

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, 598745 + ... + 628214.

It is an arithmetic number, because the mean of its divisors is an integer number (1553331360).

Almost surely, 2^18079240865 is an apocalyptic number.

It is an amenable number.

18079240865 is a deficient number, since it is larger than the sum of its proper divisors (6774060895).

18079240865 is a wasteful number, since it uses less digits than its factorization.

18079240865 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1227392.

The product of its (nonzero) digits is 967680, while the sum is 50.

The spelling of 18079240865 in words is "eighteen billion, seventy-nine million, two hundred forty thousand, eight hundred sixty-five".