7879867799 has 2 divisors, whose sum is σ = 7879867800. Its totient is φ = 7879867798.

The previous prime is 7879867753. The next prime is 7879867811. The reversal of 7879867799 is 9977689787.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 7879867799 - 2³² = 3584900503 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7879867199) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3939933899 + 3939933900.

It is an arithmetic number, because the mean of its divisors is an integer number (3939933900).

Almost surely, 2^7879867799 is an apocalyptic number.

7879867799 is a deficient number, since it is larger than the sum of its proper divisors (1).

7879867799 is an equidigital number, since it uses as much as digits as its factorization.

7879867799 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 672126336, while the sum is 77.

The square root of 7879867799 is about 88768.6194496681. The cubic root of 7879867799 is about 1989.9384507448.

The spelling of 7879867799 in words is "seven billion, eight hundred seventy-nine million, eight hundred sixty-seven thousand, seven hundred ninety-nine".