18061233023 has 16 divisors (see below), whose sum is σ = 19157385216. Its totient is φ = 16992296640.

The previous prime is 18061233017. The next prime is 18061233077. The reversal of 18061233023 is 32033216081.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-18061233023 is a prime.

It is a super-2 number, since 2×18061233023² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18061233013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 601538 + ... + 630848.

It is an arithmetic number, because the mean of its divisors is an integer number (1197336576).

Almost surely, 2^18061233023 is an apocalyptic number.

18061233023 is a deficient number, since it is larger than the sum of its proper divisors (1096152193).

18061233023 is a wasteful number, since it uses less digits than its factorization.

18061233023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29774.

The product of its (nonzero) digits is 5184, while the sum is 29.

The spelling of 18061233023 in words is "eighteen billion, sixty-one million, two hundred thirty-three thousand, twenty-three".