99990909983 has 2 divisors, whose sum is σ = 99990909984. Its totient is φ = 99990909982.

The previous prime is 99990909973. The next prime is 99990910039. The reversal of 99990909983 is 38990909999.

It is a weak prime.

It is an emirp because it is prime and its reverse (38990909999) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 99990909983 - 2¹² = 99990905887 is a prime.

It is a super-3 number, since 3×99990909983³ (a number of 34 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 99990909983.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (99990909923) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49995454991 + 49995454992.

It is an arithmetic number, because the mean of its divisors is an integer number (49995454992).

Almost surely, 2^99990909983 is an apocalyptic number.

99990909983 is a deficient number, since it is larger than the sum of its proper divisors (1).

99990909983 is an equidigital number, since it uses as much as digits as its factorization.

99990909983 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 114791256, while the sum is 74.

The spelling of 99990909983 in words is "ninety-nine billion, nine hundred ninety million, nine hundred nine thousand, nine hundred eighty-three".