99910000109987 has 2 divisors, whose sum is σ = 99910000109988. Its totient is φ = 99910000109986.

The previous prime is 99910000109947. The next prime is 99910000110059. The reversal of 99910000109987 is 78990100001999.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 99910000109987 - 2¹⁶ = 99910000044451 is a prime.

It is not a weakly prime, because it can be changed into another prime (99910000109947) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49955000054993 + 49955000054994.

It is an arithmetic number, because the mean of its divisors is an integer number (49955000054994).

Almost surely, 2^{99910000109987} is an apocalyptic number.

99910000109987 is a deficient number, since it is larger than the sum of its proper divisors (1).

99910000109987 is an equidigital number, since it uses as much as digits as its factorization.

99910000109987 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3306744, while the sum is 62.

The spelling of 99910000109987 in words is "ninety-nine trillion, nine hundred ten billion, one hundred nine thousand, nine hundred eighty-seven".