99983438999 has 2 divisors, whose sum is σ = 99983439000. Its totient is φ = 99983438998.

The previous prime is 99983438963. The next prime is 99983439019.

99983438999 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 99983438999 - 2²⁰ = 99982390423 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (99983438899) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49991719499 + 49991719500.

It is an arithmetic number, because the mean of its divisors is an integer number (49991719500).

Almost surely, 2^99983438999 is an apocalyptic number.

99983438999 is a deficient number, since it is larger than the sum of its proper divisors (1).

99983438999 is an equidigital number, since it uses as much as digits as its factorization.

99983438999 is an odious number, because the sum of its binary digits is odd.

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

The spelling of 99983438999 in words is "ninety-nine billion, nine hundred eighty-three million, four hundred thirty-eight thousand, nine hundred ninety-nine".