8478905278180 has 24 divisors (see below), whose sum is σ = 17805949467768. Its totient is φ = 3391514800128.

The previous prime is 8478905278177. The next prime is 8478905278211. The reversal of 8478905278180 is 818725098748.

It can be written as a sum of positive squares in 4 ways, for example, as 283831086564 + 8195074191616 = 532758^2 + 2862704^2 .

It is a super-2 number, since 2×8478905278180² (a number of 27 digits) contains 22 as substring.

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, 1469119 + ... + 4372198.

It is an arithmetic number, because the mean of its divisors is an integer number (741914561157).

Almost surely, 2^{8478905278180} is an apocalyptic number.

It is an amenable number.

8478905278180 is an abundant number, since it is smaller than the sum of its proper divisors (9327044189588).

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

8478905278180 is a wasteful number, since it uses less digits than its factorization.

8478905278180 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5913903 (or 5913901 counting only the distinct ones).

The product of its (nonzero) digits is 72253440, while the sum is 67.

The spelling of 8478905278180 in words is "eight trillion, four hundred seventy-eight billion, nine hundred five million, two hundred seventy-eight thousand, one hundred eighty".