252442027865 has 8 divisors (see below), whose sum is σ = 304366123968. Its totient is φ = 200996495280.

The previous prime is 252442027813. The next prime is 252442027909. The reversal of 252442027865 is 568720244252.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 252442027865 - 2⁸ = 252442027609 is a prime.

It is a Duffinian 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 7 ways as a sum of consecutive naturals, for example, 119639717 + ... + 119641826.

It is an arithmetic number, because the mean of its divisors is an integer number (38045765496).

Almost surely, 2^252442027865 is an apocalyptic number.

It is an amenable number.

252442027865 is a deficient number, since it is larger than the sum of its proper divisors (51924096103).

252442027865 is a wasteful number, since it uses less digits than its factorization.

252442027865 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 239281759.

The product of its (nonzero) digits is 2150400, while the sum is 47.

The spelling of 252442027865 in words is "two hundred fifty-two billion, four hundred forty-two million, twenty-seven thousand, eight hundred sixty-five".