18372827382820 has 24 divisors (see below), whose sum is σ = 38629479079800. Its totient is φ = 7340265891072.

The previous prime is 18372827382787. The next prime is 18372827382851. The reversal of 18372827382820 is 2828372827381.

It can be written as a sum of positive squares in 4 ways, for example, as 8058285818944 + 10314541563876 = 2838712^2 + 3211626^2 .

It is a hoax number, since the sum of its digits (61) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 554049385 + ... + 554082544.

It is an arithmetic number, because the mean of its divisors is an integer number (1609561628325).

Almost surely, 2^{18372827382820} is an apocalyptic number.

18372827382820 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

18372827382820 is an abundant number, since it is smaller than the sum of its proper divisors (20256651696980).

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

18372827382820 is a wasteful number, since it uses less digits than its factorization.

18372827382820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1108132767 (or 1108132765 counting only the distinct ones).

The product of its (nonzero) digits is 28901376, while the sum is 61.

The spelling of 18372827382820 in words is "eighteen trillion, three hundred seventy-two billion, eight hundred twenty-seven million, three hundred eighty-two thousand, eight hundred twenty".