86638568543 has 8 divisors (see below), whose sum is σ = 87547098912. Its totient is φ = 85730351616.

The previous prime is 86638568507. The next prime is 86638568567. The reversal of 86638568543 is 34586583668.

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 86638568543 - 2⁸ = 86638568287 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 (86638568503) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 499571 + ... + 650267.

It is an arithmetic number, because the mean of its divisors is an integer number (10943387364).

Almost surely, 2^86638568543 is an apocalyptic number.

86638568543 is a deficient number, since it is larger than the sum of its proper divisors (908530369).

86638568543 is a wasteful number, since it uses less digits than its factorization.

86638568543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 156721.

The product of its digits is 99532800, while the sum is 62.

The spelling of 86638568543 in words is "eighty-six billion, six hundred thirty-eight million, five hundred sixty-eight thousand, five hundred forty-three".