8278688545 has 8 divisors (see below), whose sum is σ = 10102806720. Its totient is φ = 6510697200.

The previous prime is 8278688533. The next prime is 8278688549. The reversal of 8278688545 is 5458868728.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 8278688545 - 2²³ = 8270299937 is a prime.

It is a super-2 number, since 2×8278688545² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (8278688549) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14031381 + ... + 14031970.

It is an arithmetic number, because the mean of its divisors is an integer number (1262850840).

Almost surely, 2^8278688545 is an apocalyptic number.

It is an amenable number.

8278688545 is a deficient number, since it is larger than the sum of its proper divisors (1824118175).

8278688545 is a wasteful number, since it uses less digits than its factorization.

8278688545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28063415.

The product of its digits is 34406400, while the sum is 61.

The square root of 8278688545 is about 90987.2988114275. The cubic root of 8278688545 is about 2022.9594682595.

The spelling of 8278688545 in words is "eight billion, two hundred seventy-eight million, six hundred eighty-eight thousand, five hundred forty-five".