86597679569 has 8 divisors (see below), whose sum is σ = 90365750592. Its totient is φ = 82829854800.

The previous prime is 86597679541. The next prime is 86597679643. The reversal of 86597679569 is 96597679568.

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 a de Polignac number, because none of the positive numbers 2^k-86597679569 is a prime.

It is a super-2 number, since 2×86597679569² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 86597679569.

It is not an unprimeable number, because it can be changed into a prime (86597675569) 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, 1270922 + ... + 1337324.

It is an arithmetic number, because the mean of its divisors is an integer number (11295718824).

Almost surely, 2^86597679569 is an apocalyptic number.

It is an amenable number.

86597679569 is a deficient number, since it is larger than the sum of its proper divisors (3768071023).

86597679569 is a wasteful number, since it uses less digits than its factorization.

86597679569 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 123127.

The product of its digits is 1543147200, while the sum is 77.

Subtracting 86597679569 from its reverse (96597679568), we obtain a palindrome (9999999999).

The spelling of 86597679569 in words is "eighty-six billion, five hundred ninety-seven million, six hundred seventy-nine thousand, five hundred sixty-nine".