85561319807 has 8 divisors (see below), whose sum is σ = 87539894112. Its totient is φ = 83601324000.

The previous prime is 85561319771. The next prime is 85561319839. The reversal of 85561319807 is 70891316558.

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 85561319807 - 2⁸ = 85561319551 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 (85561313807) 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, 4635308 + ... + 4653729.

It is an arithmetic number, because the mean of its divisors is an integer number (10942486764).

Almost surely, 2^85561319807 is an apocalyptic number.

85561319807 is a deficient number, since it is larger than the sum of its proper divisors (1978574305).

85561319807 is a wasteful number, since it uses less digits than its factorization.

85561319807 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9289249.

The product of its (nonzero) digits is 1814400, while the sum is 53.

The spelling of 85561319807 in words is "eighty-five billion, five hundred sixty-one million, three hundred nineteen thousand, eight hundred seven".