18347605023 has 16 divisors (see below), whose sum is σ = 26825711616. Its totient is φ = 11062141440.

The previous prime is 18347605013. The next prime is 18347605033. The reversal of 18347605023 is 32050674381.

It is an interprime number because it is at equal distance from previous prime (18347605013) and next prime (18347605033).

It is not a de Polignac number, because 18347605023 - 2⁴ = 18347605007 is a prime.

It is a super-2 number, since 2×18347605023² (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 (18347605013) 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, 1434015 + ... + 1446752.

It is an arithmetic number, because the mean of its divisors is an integer number (1676606976).

Almost surely, 2^18347605023 is an apocalyptic number.

18347605023 is a deficient number, since it is larger than the sum of its proper divisors (8478106593).

18347605023 is a wasteful number, since it uses less digits than its factorization.

18347605023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2880974.

The product of its (nonzero) digits is 120960, while the sum is 39.

The spelling of 18347605023 in words is "eighteen billion, three hundred forty-seven million, six hundred five thousand, twenty-three".