18149801835926 has 4 divisors (see below), whose sum is σ = 27224702753892. Its totient is φ = 9074900917962.

The previous prime is 18149801835917. The next prime is 18149801835953. The reversal of 18149801835926 is 62953810894181.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4537450458980 + ... + 4537450458983.

It is an arithmetic number, because the mean of its divisors is an integer number (6806175688473).

Almost surely, 2^{18149801835926} is an apocalyptic number.

18149801835926 is a deficient number, since it is larger than the sum of its proper divisors (9074900917966).

18149801835926 is an equidigital number, since it uses as much as digits as its factorization.

18149801835926 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9074900917965.

The product of its (nonzero) digits is 29859840, while the sum is 65.

The spelling of 18149801835926 in words is "eighteen trillion, one hundred forty-nine billion, eight hundred one million, eight hundred thirty-five thousand, nine hundred twenty-six".