18015065039 has 4 divisors (see below), whose sum is σ = 18015334920. Its totient is φ = 18014795160.

The previous prime is 18015065027. The next prime is 18015065041. The reversal of 18015065039 is 93056051081.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 18015065039 - 2⁸ = 18015064783 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 18015064993 and 18015065011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18015065339) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 46592 + ... + 195450.

It is an arithmetic number, because the mean of its divisors is an integer number (4503833730).

Almost surely, 2^18015065039 is an apocalyptic number.

18015065039 is a deficient number, since it is larger than the sum of its proper divisors (269881).

18015065039 is a wasteful number, since it uses less digits than its factorization.

18015065039 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 269880.

The product of its (nonzero) digits is 32400, while the sum is 38.

The spelling of 18015065039 in words is "eighteen billion, fifteen million, sixty-five thousand, thirty-nine".