10000000099987 has 2 divisors, whose sum is σ = 10000000099988. Its totient is φ = 10000000099986.

The previous prime is 10000000099981. The next prime is 10000000100011. The reversal of 10000000099987 is 78999000000001.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 10000000099987 - 2¹¹ = 10000000097939 is a prime.

It is not a weakly prime, because it can be changed into another prime (10000000099981) 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, 5000000049993 + 5000000049994.

It is an arithmetic number, because the mean of its divisors is an integer number (5000000049994).

Almost surely, 2^{10000000099987} is an apocalyptic number.

10000000099987 is a deficient number, since it is larger than the sum of its proper divisors (1).

10000000099987 is an equidigital number, since it uses as much as digits as its factorization.

10000000099987 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 40824, while the sum is 43.

Adding to 10000000099987 its reverse (78999000000001), we get a palindrome (88999000099988).

The spelling of 10000000099987 in words is "ten trillion, ninety-nine thousand, nine hundred eighty-seven".