18827488180 has 24 divisors (see below), whose sum is σ = 39618931968. Its totient is φ = 7515527328.

The previous prime is 18827488159. The next prime is 18827488187. The reversal of 18827488180 is 8188472881.

It is a happy number.

It is a super-2 number, since 2×18827488180² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18827488187) 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, 956764 + ... + 976243.

It is an arithmetic number, because the mean of its divisors is an integer number (1650788832).

Almost surely, 2^18827488180 is an apocalyptic number.

18827488180 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

18827488180 is an abundant number, since it is smaller than the sum of its proper divisors (20791443788).

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

18827488180 is a wasteful number, since it uses less digits than its factorization.

18827488180 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1933503 (or 1933501 counting only the distinct ones).

The product of its (nonzero) digits is 1835008, while the sum is 55.

The spelling of 18827488180 in words is "eighteen billion, eight hundred twenty-seven million, four hundred eighty-eight thousand, one hundred eighty".