18347538846 has 64 divisors (see below), whose sum is σ = 45185107968. Its totient is φ = 4836561408.

The previous prime is 18347538829. The next prime is 18347538889. The reversal of 18347538846 is 64883574381.

It is a congruent number.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 1312731 + ... + 1326633.

It is an arithmetic number, because the mean of its divisors is an integer number (706017312).

Almost surely, 2^18347538846 is an apocalyptic number.

18347538846 is an abundant number, since it is smaller than the sum of its proper divisors (26837569122).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

18347538846 is a wasteful number, since it uses less digits than its factorization.

18347538846 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16345.

The product of its digits is 15482880, while the sum is 57.

The spelling of 18347538846 in words is "eighteen billion, three hundred forty-seven million, five hundred thirty-eight thousand, eight hundred forty-six".