258002082865 has 4 divisors (see below), whose sum is σ = 309602499444. Its totient is φ = 206401666288.

The previous prime is 258002082857. The next prime is 258002082907. The reversal of 258002082865 is 568280200852.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 204426962496 + 53575120369 = 452136^2 + 231463^2 .

It is a cyclic number.

It is not a de Polignac number, because 258002082865 - 2³ = 258002082857 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25800208282 + ... + 25800208291.

It is an arithmetic number, because the mean of its divisors is an integer number (77400624861).

Almost surely, 2^258002082865 is an apocalyptic number.

It is an amenable number.

258002082865 is a deficient number, since it is larger than the sum of its proper divisors (51600416579).

258002082865 is an equidigital number, since it uses as much as digits as its factorization.

258002082865 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51600416578.

The product of its (nonzero) digits is 614400, while the sum is 46.

The spelling of 258002082865 in words is "two hundred fifty-eight billion, two million, eighty-two thousand, eight hundred sixty-five".