8486172478 has 32 divisors (see below), whose sum is σ = 14691466944. Its totient is φ = 3601158912.

The previous prime is 8486172451. The next prime is 8486172503. The reversal of 8486172478 is 8742716848.

It is a super-3 number, since 3×8486172478³ (a number of 31 digits) contains 333 as substring.

It is a Smith number, since the sum of its digits (55) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 637426 + ... + 650602.

It is an arithmetic number, because the mean of its divisors is an integer number (459108342).

Almost surely, 2^8486172478 is an apocalyptic number.

8486172478 is a deficient number, since it is larger than the sum of its proper divisors (6205294466).

8486172478 is a wasteful number, since it uses less digits than its factorization.

8486172478 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13636.

The product of its digits is 4816896, while the sum is 55.

The square root of 8486172478 is about 92120.4237832198. The cubic root of 8486172478 is about 2039.7202998239.

The spelling of 8486172478 in words is "eight billion, four hundred eighty-six million, one hundred seventy-two thousand, four hundred seventy-eight".