8578748117 has 2 divisors, whose sum is σ = 8578748118. Its totient is φ = 8578748116.

The previous prime is 8578748111. The next prime is 8578748209. The reversal of 8578748117 is 7118478758.

8578748117 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5027660836 + 3551087281 = 70906^2 + 59591^2 .

It is a cyclic number.

It is not a de Polignac number, because 8578748117 - 2⁶ = 8578748053 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8578748111) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4289374058 + 4289374059.

It is an arithmetic number, because the mean of its divisors is an integer number (4289374059).

Almost surely, 2^8578748117 is an apocalyptic number.

It is an amenable number.

8578748117 is a deficient number, since it is larger than the sum of its proper divisors (1).

8578748117 is an equidigital number, since it uses as much as digits as its factorization.

8578748117 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3512320, while the sum is 56.

The square root of 8578748117 is about 92621.5316057773. The cubic root of 8578748117 is about 2047.1105926450.

The spelling of 8578748117 in words is "eight billion, five hundred seventy-eight million, seven hundred forty-eight thousand, one hundred seventeen".