18535553358850 has 48 divisors (see below), whose sum is σ = 37662632830080. Its totient is φ = 6730826667200.

The previous prime is 18535553358823. The next prime is 18535553358851. The reversal of 18535553358850 is 5885335553581.

It is not an unprimeable number, because it can be changed into a prime (18535553358851) 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, 23040577 + ... + 23831476.

It is an arithmetic number, because the mean of its divisors is an integer number (784638183960).

Almost surely, 2^{18535553358850} is an apocalyptic number.

18535553358850 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

18535553358850 is an abundant number, since it is smaller than the sum of its proper divisors (19127079471230).

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

18535553358850 is a wasteful number, since it uses less digits than its factorization.

18535553358850 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46872795 (or 46872790 counting only the distinct ones).

The product of its (nonzero) digits is 216000000, while the sum is 64.

The spelling of 18535553358850 in words is "eighteen trillion, five hundred thirty-five billion, five hundred fifty-three million, three hundred fifty-eight thousand, eight hundred fifty".