265199235779 has 2 divisors, whose sum is σ = 265199235780. Its totient is φ = 265199235778.

The previous prime is 265199235703. The next prime is 265199235841. The reversal of 265199235779 is 977532991562.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-265199235779 is a prime.

It is not a weakly prime, because it can be changed into another prime (265199235179) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 132599617889 + 132599617890.

It is an arithmetic number, because the mean of its divisors is an integer number (132599617890).

Almost surely, 2^265199235779 is an apocalyptic number.

265199235779 is a deficient number, since it is larger than the sum of its proper divisors (1).

265199235779 is an equidigital number, since it uses as much as digits as its factorization.

265199235779 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 64297800, while the sum is 65.

The spelling of 265199235779 in words is "two hundred sixty-five billion, one hundred ninety-nine million, two hundred thirty-five thousand, seven hundred seventy-nine".