9942799567 has 2 divisors, whose sum is σ = 9942799568. Its totient is φ = 9942799566.

The previous prime is 9942799549. The next prime is 9942799609. The reversal of 9942799567 is 7659972499.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 9942799567 - 2¹¹ = 9942797519 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9940799567) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4971399783 + 4971399784.

It is an arithmetic number, because the mean of its divisors is an integer number (4971399784).

Almost surely, 2^9942799567 is an apocalyptic number.

9942799567 is a deficient number, since it is larger than the sum of its proper divisors (1).

9942799567 is an equidigital number, since it uses as much as digits as its factorization.

9942799567 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 77157360, while the sum is 67.

The square root of 9942799567 is about 99713.5876749002. The cubic root of 9942799567 is about 2150.3190128398.

The spelling of 9942799567 in words is "nine billion, nine hundred forty-two million, seven hundred ninety-nine thousand, five hundred sixty-seven".