18579432955 has 16 divisors (see below), whose sum is σ = 22411807200. Its totient is φ = 14786000640.

The previous prime is 18579432943. The next prime is 18579432973. The reversal of 18579432955 is 55923497581.

It is not a de Polignac number, because 18579432955 - 2¹¹ = 18579430907 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 18579432955.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1471911 + ... + 1484479.

It is an arithmetic number, because the mean of its divisors is an integer number (1400737950).

Almost surely, 2^18579432955 is an apocalyptic number.

18579432955 is a deficient number, since it is larger than the sum of its proper divisors (3832374245).

18579432955 is a wasteful number, since it uses less digits than its factorization.

18579432955 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14094.

The product of its digits is 13608000, while the sum is 58.

The spelling of 18579432955 in words is "eighteen billion, five hundred seventy-nine million, four hundred thirty-two thousand, nine hundred fifty-five".