18091046376 has 96 divisors (see below), whose sum is σ = 53358669000. Its totient is φ = 5503905792.

The previous prime is 18091046357. The next prime is 18091046377. The reversal of 18091046376 is 67364019081.

It is a happy number.

18091046376 is a `hidden beast` number, since 1 + 8 + 0 + 9 + 1 + 0 + 4 + 637 + 6 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 8176861476 + 9914184900 = 90426^2 + 99570^2 .

It is not an unprimeable number, because it can be changed into a prime (18091046377) 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 23 ways as a sum of consecutive naturals, for example, 25281 + ... + 191888.

Almost surely, 2^18091046376 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 18091046376, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26679334500).

18091046376 is an abundant number, since it is smaller than the sum of its proper divisors (35267622624).

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

18091046376 is a wasteful number, since it uses less digits than its factorization.

18091046376 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 217283 (or 217276 counting only the distinct ones).

The product of its (nonzero) digits is 217728, while the sum is 45.

The spelling of 18091046376 in words is "eighteen billion, ninety-one million, forty-six thousand, three hundred seventy-six".