85571699707 has 8 divisors (see below), whose sum is σ = 94401800640. Its totient is φ = 77062693440.

The previous prime is 85571699581. The next prime is 85571699723. The reversal of 85571699707 is 70799617558.

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 85571699707 - 2¹⁹ = 85571175419 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (85571699107) 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, 80273107 + ... + 80274172.

It is an arithmetic number, because the mean of its divisors is an integer number (11800225080).

Almost surely, 2^85571699707 is an apocalyptic number.

85571699707 is a deficient number, since it is larger than the sum of its proper divisors (8830100933).

85571699707 is a wasteful number, since it uses less digits than its factorization.

85571699707 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 160547333.

The product of its (nonzero) digits is 33339600, while the sum is 64.

The spelling of 85571699707 in words is "eighty-five billion, five hundred seventy-one million, six hundred ninety-nine thousand, seven hundred seven".