999995100779 has 2 divisors, whose sum is σ = 999995100780. Its totient is φ = 999995100778.

The previous prime is 999995100773. The next prime is 999995100781. The reversal of 999995100779 is 977001599999.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 999995100779 - 2³⁶ = 931275624043 is a prime.

Together with 999995100781, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (999995100773) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 499997550389 + 499997550390.

It is an arithmetic number, because the mean of its divisors is an integer number (499997550390).

Almost surely, 2^999995100779 is an apocalyptic number.

999995100779 is a deficient number, since it is larger than the sum of its proper divisors (1).

999995100779 is an equidigital number, since it uses as much as digits as its factorization.

999995100779 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 130203045, while the sum is 74.

The spelling of 999995100779 in words is "nine hundred ninety-nine billion, nine hundred ninety-five million, one hundred thousand, seven hundred seventy-nine".