99839493899 has 2 divisors, whose sum is σ = 99839493900. Its totient is φ = 99839493898.

The previous prime is 99839493889. The next prime is 99839493907.

99839493899 is nontrivially palindromic in base 10.

It is a strong prime.

It is a palprime.

It is a cyclic number.

It is not a de Polignac number, because 99839493899 - 2⁴ = 99839493883 is a prime.

It is not a weakly prime, because it can be changed into another prime (99839493889) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49919746949 + 49919746950.

It is an arithmetic number, because the mean of its divisors is an integer number (49919746950).

Almost surely, 2^99839493899 is an apocalyptic number.

99839493899 is a deficient number, since it is larger than the sum of its proper divisors (1).

99839493899 is an equidigital number, since it uses as much as digits as its factorization.

99839493899 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1224440064, while the sum is 80.

The spelling of 99839493899 in words is "ninety-nine billion, eight hundred thirty-nine million, four hundred ninety-three thousand, eight hundred ninety-nine".