2865618979 has 2 divisors, whose sum is σ = 2865618980. Its totient is φ = 2865618978.

The previous prime is 2865618971. The next prime is 2865618989. The reversal of 2865618979 is 9798165682.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2865618979 - 2³ = 2865618971 is a prime.

It is not a weakly prime, because it can be changed into another prime (2865618971) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1432809489 + 1432809490.

It is an arithmetic number, because the mean of its divisors is an integer number (1432809490).

Almost surely, 2^2865618979 is an apocalyptic number.

2865618979 is a deficient number, since it is larger than the sum of its proper divisors (1).

2865618979 is an equidigital number, since it uses as much as digits as its factorization.

2865618979 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 13063680, while the sum is 61.

The square root of 2865618979 is about 53531.4765254985. The cubic root of 2865618979 is about 1420.3852322195.

The spelling of 2865618979 in words is "two billion, eight hundred sixty-five million, six hundred eighteen thousand, nine hundred seventy-nine".