18610091875840 has 160 divisors (see below), whose sum is σ = 44866065334464. Its totient is φ = 7403170037760.

The previous prime is 18610091875699. The next prime is 18610091875853. The reversal of 18610091875840 is 4857819001681.

It is a tau number, because it is divible by the number of its divisors (160).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 467018797 + ... + 467058643.

Almost surely, 2^{18610091875840} is an apocalyptic number.

18610091875840 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 18610091875840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22433032667232).

18610091875840 is an abundant number, since it is smaller than the sum of its proper divisors (26255973458624).

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

18610091875840 is an equidigital number, since it uses as much as digits as its factorization.

18610091875840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40868 (or 40852 counting only the distinct ones).

The product of its (nonzero) digits is 3870720, while the sum is 58.

The spelling of 18610091875840 in words is "eighteen trillion, six hundred ten billion, ninety-one million, eight hundred seventy-five thousand, eight hundred forty".