18085010880 has 56 divisors (see below), whose sum is σ = 57419912592. Its totient is φ = 4822669312.

The previous prime is 18085010861. The next prime is 18085010887. The reversal of 18085010880 is 8801058081.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18085010887) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9418317 + ... + 9420236.

It is an arithmetic number, because the mean of its divisors is an integer number (1025355582).

Almost surely, 2^18085010880 is an apocalyptic number.

18085010880 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

18085010880 is an abundant number, since it is smaller than the sum of its proper divisors (39334901712).

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

18085010880 is a wasteful number, since it uses less digits than its factorization.

18085010880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18838573 (or 18838563 counting only the distinct ones).

The product of its (nonzero) digits is 20480, while the sum is 39.

The spelling of 18085010880 in words is "eighteen billion, eighty-five million, ten thousand, eight hundred eighty".