85987351696 has 15 divisors (see below), whose sum is σ = 166602766521. Its totient is φ = 42993089376.

The previous prime is 85987351693. The next prime is 85987351717. The reversal of 85987351696 is 69615378958.

The square root of 85987351696 is 293236.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 10208273296 + 75779078400 = 101036^2 + 275280^2 .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (85987351693) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 1136290 + ... + 1209598.

Almost surely, 2^85987351696 is an apocalyptic number.

85987351696 is the 293236-th square number.

It is an amenable number.

85987351696 is a deficient number, since it is larger than the sum of its proper divisors (80615414825).

85987351696 is an frugal number, since it uses more digits than its factorization.

85987351696 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 146626 (or 73311 counting only the distinct ones).

The product of its digits is 97977600, while the sum is 67.

The spelling of 85987351696 in words is "eighty-five billion, nine hundred eighty-seven million, three hundred fifty-one thousand, six hundred ninety-six".