85705816698 has 24 divisors (see below), whose sum is σ = 188467519968. Its totient is φ = 28142208072.

The previous prime is 85705816697. The next prime is 85705816717. The reversal of 85705816698 is 89661850758.

85705816698 is a `hidden beast` number, since 8 + 570 + 58 + 1 + 6 + 6 + 9 + 8 = 666.

It is not an unprimeable number, because it can be changed into a prime (85705816697) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 35531886 + ... + 35534297.

It is an arithmetic number, because the mean of its divisors is an integer number (7852813332).

Almost surely, 2^85705816698 is an apocalyptic number.

85705816698 is an abundant number, since it is smaller than the sum of its proper divisors (102761703270).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

85705816698 is a wasteful number, since it uses less digits than its factorization.

85705816698 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71066258 (or 71066255 counting only the distinct ones).

The product of its (nonzero) digits is 29030400, while the sum is 63.

The spelling of 85705816698 in words is "eighty-five billion, seven hundred five million, eight hundred sixteen thousand, six hundred ninety-eight".