8865775279 has 2 divisors, whose sum is σ = 8865775280. Its totient is φ = 8865775278.

The previous prime is 8865775271. The next prime is 8865775283. The reversal of 8865775279 is 9725775688.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 8865775279 - 2³ = 8865775271 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 8865775279.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8865775271) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4432887639 + 4432887640.

It is an arithmetic number, because the mean of its divisors is an integer number (4432887640).

Almost surely, 2^8865775279 is an apocalyptic number.

8865775279 is a deficient number, since it is larger than the sum of its proper divisors (1).

8865775279 is an equidigital number, since it uses as much as digits as its factorization.

8865775279 is an evil number, because the sum of its binary digits is even.

The product of its digits is 59270400, while the sum is 64.

The square root of 8865775279 is about 94158.2459426682. The cubic root of 8865775279 is about 2069.6912947967.

The spelling of 8865775279 in words is "eight billion, eight hundred sixty-five million, seven hundred seventy-five thousand, two hundred seventy-nine".