18745975259 has 16 divisors (see below), whose sum is σ = 22156675200. Its totient is φ = 15666322560.

The previous prime is 18745975217. The next prime is 18745975271. The reversal of 18745975259 is 95257954781.

It is a cyclic number.

It is not a de Polignac number, because 18745975259 - 2²⁴ = 18729198043 is a prime.

It is a super-2 number, since 2×18745975259² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (18745975279) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1157609 + ... + 1173690.

It is an arithmetic number, because the mean of its divisors is an integer number (1384792200).

Almost surely, 2^18745975259 is an apocalyptic number.

18745975259 is a deficient number, since it is larger than the sum of its proper divisors (3410699941).

18745975259 is a wasteful number, since it uses less digits than its factorization.

18745975259 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2331370.

The product of its digits is 31752000, while the sum is 62.

The spelling of 18745975259 in words is "eighteen billion, seven hundred forty-five million, nine hundred seventy-five thousand, two hundred fifty-nine".