86599762561 has 8 divisors (see below), whose sum is σ = 96477189480. Its totient is φ = 77181750912.

The previous prime is 86599762559. The next prime is 86599762567. The reversal of 86599762561 is 16526799568.

It can be written as a sum of positive squares in 4 ways, for example, as 7986818161 + 78612944400 = 89369^2 + 280380^2 .

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 86599762561 - 2¹ = 86599762559 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 86599762493 and 86599762502.

It is not an unprimeable number, because it can be changed into a prime (86599762567) 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, 114853420 + ... + 114854173.

It is an arithmetic number, because the mean of its divisors is an integer number (12059648685).

Almost surely, 2^86599762561 is an apocalyptic number.

It is an amenable number.

86599762561 is a deficient number, since it is larger than the sum of its proper divisors (9877426919).

86599762561 is a wasteful number, since it uses less digits than its factorization.

86599762561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 229707635.

The product of its digits is 48988800, while the sum is 64.

The spelling of 86599762561 in words is "eighty-six billion, five hundred ninety-nine million, seven hundred sixty-two thousand, five hundred sixty-one".