258705087464 has 16 divisors (see below), whose sum is σ = 485587538820. Its totient is φ = 129215077120.

The previous prime is 258705087437. The next prime is 258705087499. The reversal of 258705087464 is 464780507852.

258705087464 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 2 ways, for example, as 242408522500 + 16296564964 = 492350^2 + 127658^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17175329 + ... + 17190384.

Almost surely, 2^258705087464 is an apocalyptic number.

It is an amenable number.

258705087464 is a deficient number, since it is larger than the sum of its proper divisors (226882451356).

258705087464 is a wasteful number, since it uses less digits than its factorization.

258705087464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34366660 (or 34366656 counting only the distinct ones).

The product of its (nonzero) digits is 15052800, while the sum is 56.

The spelling of 258705087464 in words is "two hundred fifty-eight billion, seven hundred five million, eighty-seven thousand, four hundred sixty-four".