261058462919744 has 42 divisors (see below), whose sum is σ = 602615501625870. Its totient is φ = 111882198392832.

The previous prime is 261058462919707. The next prime is 261058462919777. The reversal of 261058462919744 is 447919264850162.

261058462919744 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 260515352878144 + 543110041600 = 16140488^2 + 736960^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 41622838529 + ... + 41622844800.

Almost surely, 2^{261058462919744} is an apocalyptic number.

It is an amenable number.

261058462919744 is an abundant number, since it is smaller than the sum of its proper divisors (341557038706126).

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

261058462919744 is an equidigital number, since it uses as much as digits as its factorization.

261058462919744 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83245683355 (or 83245683338 counting only the distinct ones).

The product of its (nonzero) digits is 209018880, while the sum is 68.

The spelling of 261058462919744 in words is "two hundred sixty-one trillion, fifty-eight billion, four hundred sixty-two million, nine hundred nineteen thousand, seven hundred forty-four".