779061811139 has 2 divisors, whose sum is σ = 779061811140. Its totient is φ = 779061811138.

The previous prime is 779061811061. The next prime is 779061811147. The reversal of 779061811139 is 931118160977.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 779061811139 - 2³² = 774766843843 is a prime.

It is not a weakly prime, because it can be changed into another prime (779061811639) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 389530905569 + 389530905570.

It is an arithmetic number, because the mean of its divisors is an integer number (389530905570).

Almost surely, 2^779061811139 is an apocalyptic number.

779061811139 is a deficient number, since it is larger than the sum of its proper divisors (1).

779061811139 is an equidigital number, since it uses as much as digits as its factorization.

779061811139 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 571536, while the sum is 53.

The spelling of 779061811139 in words is "seven hundred seventy-nine billion, sixty-one million, eight hundred eleven thousand, one hundred thirty-nine".