85251344315258 has 32 divisors (see below), whose sum is σ = 140434275199680. Its totient is φ = 38492562821760.

The previous prime is 85251344315231. The next prime is 85251344315321.

85251344315258 is nontrivially palindromic in base 10.

It is a Curzon number.

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 15 ways as a sum of consecutive naturals, for example, 19560923 + ... + 23518766.

It is an arithmetic number, because the mean of its divisors is an integer number (4388571099990).

Almost surely, 2^{85251344315258} is an apocalyptic number.

85251344315258 is a deficient number, since it is larger than the sum of its proper divisors (55182930884422).

85251344315258 is a wasteful number, since it uses less digits than its factorization.

85251344315258 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43080302.

The product of its digits is 23040000, while the sum is 56.

The spelling of 85251344315258 in words is "eighty-five trillion, two hundred fifty-one billion, three hundred forty-four million, three hundred fifteen thousand, two hundred fifty-eight".