8660423779 has 16 divisors (see below), whose sum is σ = 10256726016. Its totient is φ = 7155763200.

The previous prime is 8660423777. The next prime is 8660423831. The reversal of 8660423779 is 9773240668.

It is a cyclic number.

It is not a de Polignac number, because 8660423779 - 2¹ = 8660423777 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8660423771) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21877 + ... + 133414.

It is an arithmetic number, because the mean of its divisors is an integer number (641045376).

Almost surely, 2^8660423779 is an apocalyptic number.

8660423779 is a deficient number, since it is larger than the sum of its proper divisors (1596302237).

8660423779 is a wasteful number, since it uses less digits than its factorization.

8660423779 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 155586.

The product of its (nonzero) digits is 3048192, while the sum is 52.

The square root of 8660423779 is about 93061.3978994513. The cubic root of 8660423779 is about 2053.5867234313.

The spelling of 8660423779 in words is "eight billion, six hundred sixty million, four hundred twenty-three thousand, seven hundred seventy-nine".