18287277039 has 16 divisors (see below), whose sum is σ = 27603439200. Its totient is φ = 11961488448.

The previous prime is 18287277031. The next prime is 18287277079. The reversal of 18287277039 is 93077278281.

It is not a de Polignac number, because 18287277039 - 2³ = 18287277031 is a prime.

It is a super-2 number, since 2×18287277039² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18287277031) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6388254 + ... + 6391115.

It is an arithmetic number, because the mean of its divisors is an integer number (1725214950).

Almost surely, 2^18287277039 is an apocalyptic number.

18287277039 is a deficient number, since it is larger than the sum of its proper divisors (9316162161).

18287277039 is a wasteful number, since it uses less digits than its factorization.

18287277039 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12779431 (or 12779425 counting only the distinct ones).

The product of its (nonzero) digits is 2370816, while the sum is 54.

The spelling of 18287277039 in words is "eighteen billion, two hundred eighty-seven million, two hundred seventy-seven thousand, thirty-nine".