9678752899 has 2 divisors, whose sum is σ = 9678752900. Its totient is φ = 9678752898.

The previous prime is 9678752891. The next prime is 9678752903. The reversal of 9678752899 is 9982578769.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 9678752899 - 2³ = 9678752891 is a prime.

It is not a weakly prime, because it can be changed into another prime (9678752891) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4839376449 + 4839376450.

It is an arithmetic number, because the mean of its divisors is an integer number (4839376450).

Almost surely, 2^9678752899 is an apocalyptic number.

9678752899 is a deficient number, since it is larger than the sum of its proper divisors (1).

9678752899 is an equidigital number, since it uses as much as digits as its factorization.

9678752899 is an evil number, because the sum of its binary digits is even.

The product of its digits is 137168640, while the sum is 70.

The square root of 9678752899 is about 98380.6530726443. The cubic root of 9678752899 is about 2131.1129466263.

The spelling of 9678752899 in words is "nine billion, six hundred seventy-eight million, seven hundred fifty-two thousand, eight hundred ninety-nine".