8681798399 has 2 divisors, whose sum is σ = 8681798400. Its totient is φ = 8681798398.

The previous prime is 8681798371. The next prime is 8681798441. The reversal of 8681798399 is 9938971868.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 8681798399 - 2⁸ = 8681798143 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8681798369) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4340899199 + 4340899200.

It is an arithmetic number, because the mean of its divisors is an integer number (4340899200).

Almost surely, 2^8681798399 is an apocalyptic number.

8681798399 is a deficient number, since it is larger than the sum of its proper divisors (1).

8681798399 is an equidigital number, since it uses as much as digits as its factorization.

8681798399 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 47029248, while the sum is 68.

The square root of 8681798399 is about 93176.1686215955. The cubic root of 8681798399 is about 2055.2748076243.

The spelling of 8681798399 in words is "eight billion, six hundred eighty-one million, seven hundred ninety-eight thousand, three hundred ninety-nine".