79869000779 has 2 divisors, whose sum is σ = 79869000780. Its totient is φ = 79869000778.

The previous prime is 79869000737. The next prime is 79869000793. The reversal of 79869000779 is 97700096897.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-79869000779 is a prime.

It is not a weakly prime, because it can be changed into another prime (79869003779) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39934500389 + 39934500390.

It is an arithmetic number, because the mean of its divisors is an integer number (39934500390).

Almost surely, 2^79869000779 is an apocalyptic number.

79869000779 is a deficient number, since it is larger than the sum of its proper divisors (1).

79869000779 is an equidigital number, since it uses as much as digits as its factorization.

79869000779 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12002256, while the sum is 62.

The spelling of 79869000779 in words is "seventy-nine billion, eight hundred sixty-nine million, seven hundred seventy-nine", and thus it is an aban number.