85811690600 has 48 divisors (see below), whose sum is σ = 199739051820. Its totient is φ = 34285644800.

The previous prime is 85811690593. The next prime is 85811690651. The reversal of 85811690600 is 609611858.

It can be written as a sum of positive squares in 6 ways, for example, as 8970741796 + 76840948804 = 94714^2 + 277202^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 67307 + ... + 419706.

Almost surely, 2^85811690600 is an apocalyptic number.

It is an amenable number.

85811690600 is an abundant number, since it is smaller than the sum of its proper divisors (113927361220).

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

85811690600 is a wasteful number, since it uses less digits than its factorization.

85811690600 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 487910 (or 487901 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 44.

The spelling of 85811690600 in words is "eighty-five billion, eight hundred eleven million, six hundred ninety thousand, six hundred".