85807886247 has 8 divisors (see below), whose sum is σ = 127122794480. Its totient is φ = 57205257480.

The previous prime is 85807886233. The next prime is 85807886273. The reversal of 85807886247 is 74268870858.

85807886247 is a `hidden beast` number, since 8 + 580 + 7 + 8 + 8 + 6 + 2 + 47 = 666.

It is not a de Polignac number, because 85807886247 - 2¹⁵ = 85807853479 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 (85807886207) 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 7 ways as a sum of consecutive naturals, for example, 1589034904 + ... + 1589034957.

It is an arithmetic number, because the mean of its divisors is an integer number (15890349310).

Almost surely, 2^85807886247 is an apocalyptic number.

85807886247 is a deficient number, since it is larger than the sum of its proper divisors (41314908233).

85807886247 is a wasteful number, since it uses less digits than its factorization.

85807886247 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3178069870 (or 3178069864 counting only the distinct ones).

The product of its (nonzero) digits is 48168960, while the sum is 63.

The spelling of 85807886247 in words is "eighty-five billion, eight hundred seven million, eight hundred eighty-six thousand, two hundred forty-seven".