18730740259 has 16 divisors (see below), whose sum is σ = 23672517120. Its totient is φ = 14395440960.

The previous prime is 18730740247. The next prime is 18730740263. The reversal of 18730740259 is 95204703781.

It is a cyclic number.

It is not a de Polignac number, because 18730740259 - 2¹¹ = 18730738211 is a prime.

It is not an unprimeable number, because it can be changed into a prime (18730740239) 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, 1660519 + ... + 1671760.

It is an arithmetic number, because the mean of its divisors is an integer number (1479532320).

Almost surely, 2^18730740259 is an apocalyptic number.

18730740259 is a deficient number, since it is larger than the sum of its proper divisors (4941776861).

18730740259 is a wasteful number, since it uses less digits than its factorization.

18730740259 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3332370.

The product of its (nonzero) digits is 423360, while the sum is 46.

The spelling of 18730740259 in words is "eighteen billion, seven hundred thirty million, seven hundred forty thousand, two hundred fifty-nine".