18059231235 has 16 divisors (see below), whose sum is σ = 29384513280. Its totient is φ = 9468342240.

The previous prime is 18059231221. The next prime is 18059231293. The reversal of 18059231235 is 53213295081.

It is not a de Polignac number, because 18059231235 - 2⁶ = 18059231171 is a prime.

It is a super-2 number, since 2×18059231235² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 18059231193 and 18059231202.

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, 10202071 + ... + 10203840.

It is an arithmetic number, because the mean of its divisors is an integer number (1836532080).

Almost surely, 2^18059231235 is an apocalyptic number.

18059231235 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

18059231235 is a deficient number, since it is larger than the sum of its proper divisors (11325282045).

18059231235 is a wasteful number, since it uses less digits than its factorization.

18059231235 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20405978.

The product of its (nonzero) digits is 64800, while the sum is 39.

The spelling of 18059231235 in words is "eighteen billion, fifty-nine million, two hundred thirty-one thousand, two hundred thirty-five".