18042590727 has 16 divisors (see below), whose sum is σ = 30548302080. Its totient is φ = 10310051736.

The previous prime is 18042590711. The next prime is 18042590743. The reversal of 18042590727 is 72709524081.

It is a happy number.

18042590727 is a `hidden beast` number, since 18 + 0 + 42 + 590 + 7 + 2 + 7 = 666.

It is an interprime number because it is at equal distance from previous prime (18042590711) and next prime (18042590743).

It is not a de Polignac number, because 18042590727 - 2⁴ = 18042590711 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18042590777) 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, 47731533 + ... + 47731910.

It is an arithmetic number, because the mean of its divisors is an integer number (1909268880).

Almost surely, 2^18042590727 is an apocalyptic number.

18042590727 is a deficient number, since it is larger than the sum of its proper divisors (12505711353).

18042590727 is an equidigital number, since it uses as much as digits as its factorization.

18042590727 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95463459 (or 95463453 counting only the distinct ones).

The product of its (nonzero) digits is 282240, while the sum is 45.

The spelling of 18042590727 in words is "eighteen billion, forty-two million, five hundred ninety thousand, seven hundred twenty-seven".