86795235891 has 24 divisors (see below), whose sum is σ = 154302643040. Its totient is φ = 45782102016.

The previous prime is 86795235869. The next prime is 86795235911. The reversal of 86795235891 is 19853259768.

86795235891 is a `hidden beast` number, since 86 + 79 + 52 + 358 + 91 = 666.

It is not a de Polignac number, because 86795235891 - 2¹³ = 86795227699 is a prime.

It is a Smith number, since the sum of its digits (63) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is not an unprimeable number, because it can be changed into a prime (86795235091) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 52987726 + ... + 52989363.

Almost surely, 2^86795235891 is an apocalyptic number.

86795235891 is a deficient number, since it is larger than the sum of its proper divisors (67507407149).

86795235891 is a wasteful number, since it uses less digits than its factorization.

86795235891 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105977115 (or 105977112 counting only the distinct ones).

The product of its digits is 32659200, while the sum is 63.

The spelling of 86795235891 in words is "eighty-six billion, seven hundred ninety-five million, two hundred thirty-five thousand, eight hundred ninety-one".