85861511807 has 8 divisors (see below), whose sum is σ = 89730180960. Its totient is φ = 82004139360.

The previous prime is 85861511759. The next prime is 85861511831. The reversal of 85861511807 is 70811516858.

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

It is a cyclic number.

It is not a de Polignac number, because 85861511807 - 2¹⁰ = 85861510783 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 (85861511207) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2808632 + ... + 2839037.

It is an arithmetic number, because the mean of its divisors is an integer number (11216272620).

Almost surely, 2^85861511807 is an apocalyptic number.

85861511807 is a deficient number, since it is larger than the sum of its proper divisors (3868669153).

85861511807 is a wasteful number, since it uses less digits than its factorization.

85861511807 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5648353.

The product of its (nonzero) digits is 537600, while the sum is 50.

The spelling of 85861511807 in words is "eighty-five billion, eight hundred sixty-one million, five hundred eleven thousand, eight hundred seven".