265448261078 has 32 divisors (see below), whose sum is σ = 534609089280. Its totient is φ = 95465907360.

The previous prime is 265448261069. The next prime is 265448261087. The reversal of 265448261078 is 870162844562.

It is an interprime number because it is at equal distance from previous prime (265448261069) and next prime (265448261087).

It is a Smith number, since the sum of its digits (53) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Curzon 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 15 ways as a sum of consecutive naturals, for example, 66293768 + ... + 66297771.

It is an arithmetic number, because the mean of its divisors is an integer number (16706534040).

Almost surely, 2^265448261078 is an apocalyptic number.

265448261078 is an abundant number, since it is smaller than the sum of its proper divisors (269160828202).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

265448261078 is a wasteful number, since it uses less digits than its factorization.

265448261078 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 132591572.

The product of its (nonzero) digits is 5160960, while the sum is 53.

The spelling of 265448261078 in words is "two hundred sixty-five billion, four hundred forty-eight million, two hundred sixty-one thousand, seventy-eight".