18532380223903 has 64 divisors (see below), whose sum is σ = 24372135854080. Its totient is φ = 13681543075200.

The previous prime is 18532380223901. The next prime is 18532380223943. The reversal of 18532380223903 is 30932208323581.

It is not a de Polignac number, because 18532380223903 - 2¹ = 18532380223901 is a prime.

It is a super-2 number, since 2×18532380223903² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18532380223901) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 948860248 + ... + 948879778.

It is an arithmetic number, because the mean of its divisors is an integer number (380814622720).

Almost surely, 2^{18532380223903} is an apocalyptic number.

18532380223903 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

18532380223903 is a deficient number, since it is larger than the sum of its proper divisors (5839755630177).

18532380223903 is a wasteful number, since it uses less digits than its factorization.

18532380223903 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27828.

The product of its (nonzero) digits is 1866240, while the sum is 49.

The spelling of 18532380223903 in words is "eighteen trillion, five hundred thirty-two billion, three hundred eighty million, two hundred twenty-three thousand, nine hundred three".