879856331779 has 2 divisors, whose sum is σ = 879856331780. Its totient is φ = 879856331778.

The previous prime is 879856331741. The next prime is 879856331789. The reversal of 879856331779 is 977133658978.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 879856331779 - 2¹³ = 879856323587 is a prime.

It is not a weakly prime, because it can be changed into another prime (879856331789) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 439928165889 + 439928165890.

It is an arithmetic number, because the mean of its divisors is an integer number (439928165890).

Almost surely, 2^879856331779 is an apocalyptic number.

879856331779 is a deficient number, since it is larger than the sum of its proper divisors (1).

879856331779 is an equidigital number, since it uses as much as digits as its factorization.

879856331779 is an evil number, because the sum of its binary digits is even.

The product of its digits is 480090240, while the sum is 73.

The spelling of 879856331779 in words is "eight hundred seventy-nine billion, eight hundred fifty-six million, three hundred thirty-one thousand, seven hundred seventy-nine".