18077765259 has 8 divisors (see below), whose sum is σ = 24512224320. Its totient is φ = 11847574856.

The previous prime is 18077765203. The next prime is 18077765281. The reversal of 18077765259 is 95256777081.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 18077765259 - 2²⁹ = 17540894347 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 18077765199 and 18077765208.

It is not an unprimeable number, because it can be changed into a prime (18077765659) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 51066957 + ... + 51067310.

It is an arithmetic number, because the mean of its divisors is an integer number (3064028040).

Almost surely, 2^18077765259 is an apocalyptic number.

18077765259 is a deficient number, since it is larger than the sum of its proper divisors (6434459061).

18077765259 is a wasteful number, since it uses less digits than its factorization.

18077765259 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102134329.

The product of its (nonzero) digits is 7408800, while the sum is 57.

The spelling of 18077765259 in words is "eighteen billion, seventy-seven million, seven hundred sixty-five thousand, two hundred fifty-nine".