86709031699 has 2 divisors, whose sum is σ = 86709031700. Its totient is φ = 86709031698.

The previous prime is 86709031681. The next prime is 86709031789. The reversal of 86709031699 is 99613090768.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 86709031699 - 2¹¹ = 86709029651 is a prime.

It is not a weakly prime, because it can be changed into another prime (86709031649) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43354515849 + 43354515850.

It is an arithmetic number, because the mean of its divisors is an integer number (43354515850).

Almost surely, 2^86709031699 is an apocalyptic number.

86709031699 is a deficient number, since it is larger than the sum of its proper divisors (1).

86709031699 is an equidigital number, since it uses as much as digits as its factorization.

86709031699 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4408992, while the sum is 58.

The spelling of 86709031699 in words is "eighty-six billion, seven hundred nine million, thirty-one thousand, six hundred ninety-nine".