85251265759 has 16 divisors (see below), whose sum is σ = 93574012320. Its totient is φ = 77024296960.

The previous prime is 85251265747. The next prime is 85251265777. The reversal of 85251265759 is 95756215258.

It is a cyclic number.

It is not a de Polignac number, because 85251265759 - 2⁹ = 85251265247 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85251268759) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 6328359 + ... + 6341815.

It is an arithmetic number, because the mean of its divisors is an integer number (5848375770).

Almost surely, 2^85251265759 is an apocalyptic number.

85251265759 is a deficient number, since it is larger than the sum of its proper divisors (8322746561).

85251265759 is a wasteful number, since it uses less digits than its factorization.

85251265759 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16970.

The product of its digits is 7560000, while the sum is 55.

The spelling of 85251265759 in words is "eighty-five billion, two hundred fifty-one million, two hundred sixty-five thousand, seven hundred fifty-nine".