86345719065 has 32 divisors (see below), whose sum is σ = 162533122560. Its totient is φ = 43342163712.

The previous prime is 86345719063. The next prime is 86345719067. The reversal of 86345719065 is 56091754368.

86345719065 is a `hidden beast` number, since 8 + 6 + 3 + 4 + 571 + 9 + 0 + 65 = 666.

It is an interprime number because it is at equal distance from previous prime (86345719063) and next prime (86345719067).

It is not a de Polignac number, because 86345719065 - 2¹ = 86345719063 is a prime.

It is a Smith number, since the sum of its digits (54) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (86345719063) 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 31 ways as a sum of consecutive naturals, for example, 18809409 + ... + 18813998.

It is an arithmetic number, because the mean of its divisors is an integer number (5079160080).

Almost surely, 2^86345719065 is an apocalyptic number.

86345719065 is a gapful number since it is divisible by the number (85) formed by its first and last digit.

It is an amenable number.

86345719065 is a deficient number, since it is larger than the sum of its proper divisors (76187403495).

86345719065 is a wasteful number, since it uses less digits than its factorization.

86345719065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37623438 (or 37623432 counting only the distinct ones).

The product of its (nonzero) digits is 5443200, while the sum is 54.

The spelling of 86345719065 in words is "eighty-six billion, three hundred forty-five million, seven hundred nineteen thousand, sixty-five".