9685912699 has 2 divisors, whose sum is σ = 9685912700. Its totient is φ = 9685912698.

The previous prime is 9685912619. The next prime is 9685912723. The reversal of 9685912699 is 9962195869.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 9685912699 - 2¹⁹ = 9685388411 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 9685912699.

It is not a weakly prime, because it can be changed into another prime (9685912619) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4842956349 + 4842956350.

It is an arithmetic number, because the mean of its divisors is an integer number (4842956350).

Almost surely, 2^9685912699 is an apocalyptic number.

9685912699 is a deficient number, since it is larger than the sum of its proper divisors (1).

9685912699 is an equidigital number, since it uses as much as digits as its factorization.

9685912699 is an evil number, because the sum of its binary digits is even.

The product of its digits is 18895680, while the sum is 64.

The square root of 9685912699 is about 98417.0345976752. The cubic root of 9685912699 is about 2131.6383098199.

The spelling of 9685912699 in words is "nine billion, six hundred eighty-five million, nine hundred twelve thousand, six hundred ninety-nine".