86320643509 has 8 divisors (see below), whose sum is σ = 88450854912. Its totient is φ = 84191614560.

The previous prime is 86320643503. The next prime is 86320643531. The reversal of 86320643509 is 90534602368.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 86320643509 - 2³ = 86320643501 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86320643501) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 146899 + ... + 440704.

It is an arithmetic number, because the mean of its divisors is an integer number (11056356864).

Almost surely, 2^86320643509 is an apocalyptic number.

It is an amenable number.

86320643509 is a deficient number, since it is larger than the sum of its proper divisors (2130211403).

86320643509 is a wasteful number, since it uses less digits than its factorization.

86320643509 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 591227.

The product of its (nonzero) digits is 933120, while the sum is 46.

The spelling of 86320643509 in words is "eighty-six billion, three hundred twenty million, six hundred forty-three thousand, five hundred nine".