99999963499 has 2 divisors, whose sum is σ = 99999963500. Its totient is φ = 99999963498.

The previous prime is 99999963493. The next prime is 99999963643. The reversal of 99999963499 is 99436999999.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 99999963499 - 2³ = 99999963491 is a prime.

It is not a weakly prime, because it can be changed into another prime (99999963491) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49999981749 + 49999981750.

It is an arithmetic number, because the mean of its divisors is an integer number (49999981750).

Almost surely, 2^99999963499 is an apocalyptic number.

99999963499 is a deficient number, since it is larger than the sum of its proper divisors (1).

99999963499 is an equidigital number, since it uses as much as digits as its factorization.

99999963499 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3099363912, while the sum is 85.

The spelling of 99999963499 in words is "ninety-nine billion, nine hundred ninety-nine million, nine hundred sixty-three thousand, four hundred ninety-nine".