8278674459 has 32 divisors (see below), whose sum is σ = 12332162304. Its totient is φ = 4896554880.

The previous prime is 8278674389. The next prime is 8278674461. The reversal of 8278674459 is 9544768728.

It is a happy number.

It is not a de Polignac number, because 8278674459 - 2⁹ = 8278673947 is a prime.

It is not an unprimeable number, because it can be changed into a prime (8278654459) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2798209 + ... + 2801165.

It is an arithmetic number, because the mean of its divisors is an integer number (385380072).

Almost surely, 2^8278674459 is an apocalyptic number.

8278674459 is a deficient number, since it is larger than the sum of its proper divisors (4053487845).

8278674459 is a wasteful number, since it uses less digits than its factorization.

8278674459 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4987.

The product of its digits is 27095040, while the sum is 60.

The square root of 8278674459 is about 90987.2214049863. The cubic root of 8278674459 is about 2022.9583209190.

The spelling of 8278674459 in words is "eight billion, two hundred seventy-eight million, six hundred seventy-four thousand, four hundred fifty-nine".