85707394664 has 32 divisors (see below), whose sum is σ = 165100965120. Its totient is φ = 41681261376.

The previous prime is 85707394639. The next prime is 85707394693. The reversal of 85707394664 is 46649370758.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 846917 + ... + 942699.

It is an arithmetic number, because the mean of its divisors is an integer number (5159405160).

Almost surely, 2^85707394664 is an apocalyptic number.

It is an amenable number.

85707394664 is a deficient number, since it is larger than the sum of its proper divisors (79393570456).

85707394664 is a wasteful number, since it uses less digits than its factorization.

85707394664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98849 (or 98845 counting only the distinct ones).

The product of its (nonzero) digits is 30481920, while the sum is 59.

The spelling of 85707394664 in words is "eighty-five billion, seven hundred seven million, three hundred ninety-four thousand, six hundred sixty-four".