86807708065 has 32 divisors (see below), whose sum is σ = 112588630560. Its totient is φ = 63872354304.

The previous prime is 86807708063. The next prime is 86807708137. The reversal of 86807708065 is 56080770868.

It can be written as a sum of positive squares in 16 ways, for example, as 11404744849 + 75402963216 = 106793^2 + 274596^2 .

It is a cyclic number.

It is not a de Polignac number, because 86807708065 - 2¹ = 86807708063 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 86807707997 and 86807708015.

It is not an unprimeable number, because it can be changed into a prime (86807708063) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 33947767 + ... + 33950323.

It is an arithmetic number, because the mean of its divisors is an integer number (3518394705).

Almost surely, 2^86807708065 is an apocalyptic number.

It is an amenable number.

86807708065 is a deficient number, since it is larger than the sum of its proper divisors (25780922495).

86807708065 is a wasteful number, since it uses less digits than its factorization.

86807708065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4261.

The product of its (nonzero) digits is 4515840, while the sum is 55.

The spelling of 86807708065 in words is "eighty-six billion, eight hundred seven million, seven hundred eight thousand, sixty-five".