18579455959 has 8 divisors (see below), whose sum is σ = 20012654592. Its totient is φ = 17198373720.

The previous prime is 18579455929. The next prime is 18579456001. The reversal of 18579455959 is 95955497581.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-18579455959 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 18579455894 and 18579455903.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18579455929) 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, 13028359 + ... + 13029784.

It is an arithmetic number, because the mean of its divisors is an integer number (2501581824).

Almost surely, 2^18579455959 is an apocalyptic number.

18579455959 is a deficient number, since it is larger than the sum of its proper divisors (1433198633).

18579455959 is a wasteful number, since it uses less digits than its factorization.

18579455959 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26058197.

The product of its digits is 102060000, while the sum is 67.

The spelling of 18579455959 in words is "eighteen billion, five hundred seventy-nine million, four hundred fifty-five thousand, nine hundred fifty-nine".