86605863417797 has 8 divisors (see below), whose sum is σ = 87383874147480. Its totient is φ = 85828055971840.

The previous prime is 86605863417793. The next prime is 86605863417823. The reversal of 86605863417797 is 79771436850668.

It can be written as a sum of positive squares in 4 ways, for example, as 21580122084481 + 65025741333316 = 4645441^2 + 8063854^2 .

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 86605863417797 - 2² = 86605863417793 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 (86605863417793) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 49964972 + ... + 51669237.

It is an arithmetic number, because the mean of its divisors is an integer number (10922984268435).

Almost surely, 2^{86605863417797} is an apocalyptic number.

It is an amenable number.

86605863417797 is a deficient number, since it is larger than the sum of its proper divisors (778010729683).

86605863417797 is a wasteful number, since it uses less digits than its factorization.

86605863417797 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101641863.

The product of its (nonzero) digits is 2560481280, while the sum is 77.

The spelling of 86605863417797 in words is "eighty-six trillion, six hundred five billion, eight hundred sixty-three million, four hundred seventeen thousand, seven hundred ninety-seven".