18011252179 has 8 divisors (see below), whose sum is σ = 18961583040. Its totient is φ = 17061158376.

The previous prime is 18011252173. The next prime is 18011252197. The reversal of 18011252179 is 97125211081.

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

It is not a de Polignac number, because 18011252179 - 2²¹ = 18009155027 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (18011252173) 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, 108972 + ... + 218854.

It is an arithmetic number, because the mean of its divisors is an integer number (2370197880).

Almost surely, 2^18011252179 is an apocalyptic number.

18011252179 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

18011252179 is a deficient number, since it is larger than the sum of its proper divisors (950330861).

18011252179 is a wasteful number, since it uses less digits than its factorization.

18011252179 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 118529.

The product of its (nonzero) digits is 10080, while the sum is 37.

The spelling of 18011252179 in words is "eighteen billion, eleven million, two hundred fifty-two thousand, one hundred seventy-nine".