12180493543824 has 50 divisors (see below), whose sum is σ = 35253882166470. Its totient is φ = 4060164514176.

The previous prime is 12180493543793. The next prime is 12180493543861. The reversal of 12180493543824 is 42834539408121.

It is a happy number.

12180493543824 is a `hidden beast` number, since 1 + 2 + 1 + 8 + 0 + 4 + 93 + 543 + 8 + 2 + 4 = 666.

It can be written as a sum of positive squares in only one way, i.e., 10128815456400 + 2051678087424 = 3182580^2 + 1432368^2 .

It is a super-2 number, since 2×12180493543824² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 4699263189 + ... + 4699265780.

Almost surely, 2^{12180493543824} is an apocalyptic number.

It is an amenable number.

12180493543824 is an abundant number, since it is smaller than the sum of its proper divisors (23073388622646).

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

12180493543824 is an equidigital number, since it uses as much as digits as its factorization.

12180493543824 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9398528989 (or 9398528974 counting only the distinct ones).

The product of its (nonzero) digits is 6635520, while the sum is 54.

The spelling of 12180493543824 in words is "twelve trillion, one hundred eighty billion, four hundred ninety-three million, five hundred forty-three thousand, eight hundred twenty-four".