42543108180 has 72 divisors (see below), whose sum is σ = 129064414752. Its totient is φ = 11343335616.

The previous prime is 42543108173. The next prime is 42543108239. The reversal of 42543108180 is 8180134524.

42543108180 is a `hidden beast` number, since 4 + 2 + 543 + 108 + 1 + 8 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2364699 + ... + 2382621.

It is an arithmetic number, because the mean of its divisors is an integer number (1792561316).

Almost surely, 2^42543108180 is an apocalyptic number.

It is an amenable number.

42543108180 is an abundant number, since it is smaller than the sum of its proper divisors (86521306572).

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

42543108180 is a wasteful number, since it uses less digits than its factorization.

42543108180 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31125 (or 31120 counting only the distinct ones).

The product of its (nonzero) digits is 30720, while the sum is 36.

The spelling of 42543108180 in words is "forty-two billion, five hundred forty-three million, one hundred eight thousand, one hundred eighty".