86613070409 has 2 divisors, whose sum is σ = 86613070410. Its totient is φ = 86613070408.

The previous prime is 86613070391. The next prime is 86613070417. The reversal of 86613070409 is 90407031668.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 83547012025 + 3066058384 = 289045^2 + 55372^2 .

It is a cyclic number.

It is not a de Polignac number, because 86613070409 - 2²⁰ = 86612021833 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 86613070409.

It is not a weakly prime, because it can be changed into another prime (86613070469) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43306535204 + 43306535205.

It is an arithmetic number, because the mean of its divisors is an integer number (43306535205).

Almost surely, 2^86613070409 is an apocalyptic number.

It is an amenable number.

86613070409 is a deficient number, since it is larger than the sum of its proper divisors (1).

86613070409 is an equidigital number, since it uses as much as digits as its factorization.

86613070409 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 217728, while the sum is 44.

The spelling of 86613070409 in words is "eighty-six billion, six hundred thirteen million, seventy thousand, four hundred nine".