86982235709 has 2 divisors, whose sum is σ = 86982235710. Its totient is φ = 86982235708.

The previous prime is 86982235693. The next prime is 86982235723. The reversal of 86982235709 is 90753228968.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 86320202809 + 662032900 = 293803^2 + 25730^2 .

It is a cyclic number.

It is not a de Polignac number, because 86982235709 - 2⁴ = 86982235693 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (86982235009) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43491117854 + 43491117855.

It is an arithmetic number, because the mean of its divisors is an integer number (43491117855).

Almost surely, 2^86982235709 is an apocalyptic number.

It is an amenable number.

86982235709 is a deficient number, since it is larger than the sum of its proper divisors (1).

86982235709 is an equidigital number, since it uses as much as digits as its factorization.

86982235709 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 13063680, while the sum is 59.

The spelling of 86982235709 in words is "eighty-six billion, nine hundred eighty-two million, two hundred thirty-five thousand, seven hundred nine".