18041631100 has 36 divisors (see below), whose sum is σ = 40413260608. Its totient is φ = 6983856000.

The previous prime is 18041631053. The next prime is 18041631107. The reversal of 18041631100 is 113614081.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18041631107) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2906841 + ... + 2913040.

Almost surely, 2^18041631100 is an apocalyptic number.

18041631100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

18041631100 is an abundant number, since it is smaller than the sum of its proper divisors (22371629508).

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

18041631100 is a wasteful number, since it uses less digits than its factorization.

18041631100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5819926 (or 5819919 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 25.

The spelling of 18041631100 in words is "eighteen billion, forty-one million, six hundred thirty-one thousand, one hundred".