265263777775 has 12 divisors (see below), whose sum is σ = 329131057032. Its totient is φ = 212079427040.

The previous prime is 265263777743. The next prime is 265263777811. The reversal of 265263777775 is 577777362562.

It is not a de Polignac number, because 265263777775 - 2⁵ = 265263777743 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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 in 11 ways as a sum of consecutive naturals, for example, 3248749 + ... + 3329398.

It is an arithmetic number, because the mean of its divisors is an integer number (27427588086).

Almost surely, 2^265263777775 is an apocalyptic number.

265263777775 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

265263777775 is a deficient number, since it is larger than the sum of its proper divisors (63867279257).

265263777775 is a wasteful number, since it uses less digits than its factorization.

265263777775 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6579770 (or 6579765 counting only the distinct ones).

The product of its digits is 181515600, while the sum is 64.

The spelling of 265263777775 in words is "two hundred sixty-five billion, two hundred sixty-three million, seven hundred seventy-seven thousand, seven hundred seventy-five".