86645789685 has 96 divisors (see below), whose sum is σ = 187448421888. Its totient is φ = 36047531520.

The previous prime is 86645789639. The next prime is 86645789693. The reversal of 86645789685 is 58698754668.

It is a happy number.

86645789685 is a `hidden beast` number, since 8 + 6 + 6 + 457 + 8 + 96 + 85 = 666.

It is not a de Polignac number, because 86645789685 - 2¹⁰ = 86645788661 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 141739 + ... + 439751.

It is an arithmetic number, because the mean of its divisors is an integer number (1952587728).

Almost surely, 2^86645789685 is an apocalyptic number.

It is an amenable number.

86645789685 is an abundant number, since it is smaller than the sum of its proper divisors (100802632203).

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

86645789685 is a wasteful number, since it uses less digits than its factorization.

86645789685 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 298115 (or 298112 counting only the distinct ones).

The product of its digits is 696729600, while the sum is 72.

The spelling of 86645789685 in words is "eighty-six billion, six hundred forty-five million, seven hundred eighty-nine thousand, six hundred eighty-five".