99909986903 has 2 divisors, whose sum is σ = 99909986904. Its totient is φ = 99909986902.

The previous prime is 99909986873. The next prime is 99909986923. The reversal of 99909986903 is 30968990999.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 99909986903 - 2¹⁶ = 99909921367 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (99909986923) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49954993451 + 49954993452.

It is an arithmetic number, because the mean of its divisors is an integer number (49954993452).

Almost surely, 2^99909986903 is an apocalyptic number.

99909986903 is a deficient number, since it is larger than the sum of its proper divisors (1).

99909986903 is an equidigital number, since it uses as much as digits as its factorization.

99909986903 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 76527504, while the sum is 71.

The spelling of 99909986903 in words is "ninety-nine billion, nine hundred nine million, nine hundred eighty-six thousand, nine hundred three".