180064421478 has 48 divisors (see below), whose sum is σ = 413436441600. Its totient is φ = 56538303360.

The previous prime is 180064421477. The next prime is 180064421521. The reversal of 180064421478 is 874124460081.

180064421478 is a `hidden beast` number, since 1 + 80 + 0 + 64 + 42 + 1 + 478 = 666.

180064421478 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (180064421477) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4185318 + ... + 4228121.

It is an arithmetic number, because the mean of its divisors is an integer number (8613259200).

Almost surely, 2^180064421478 is an apocalyptic number.

180064421478 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

180064421478 is an abundant number, since it is smaller than the sum of its proper divisors (233372020122).

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

180064421478 is a wasteful number, since it uses less digits than its factorization.

180064421478 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8413517 (or 8413514 counting only the distinct ones).

The product of its (nonzero) digits is 344064, while the sum is 45.

The spelling of 180064421478 in words is "one hundred eighty billion, sixty-four million, four hundred twenty-one thousand, four hundred seventy-eight".