10000109998987 has 2 divisors, whose sum is σ = 10000109998988. Its totient is φ = 10000109998986.

The previous prime is 10000109998939. The next prime is 10000109999051. The reversal of 10000109998987 is 78989990100001.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 10000109998987 - 2¹¹ = 10000109996939 is a prime.

It is not a weakly prime, because it can be changed into another prime (10000109998927) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5000054999493 + 5000054999494.

It is an arithmetic number, because the mean of its divisors is an integer number (5000054999494).

Almost surely, 2^{10000109998987} is an apocalyptic number.

10000109998987 is a deficient number, since it is larger than the sum of its proper divisors (1).

10000109998987 is an equidigital number, since it uses as much as digits as its factorization.

10000109998987 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2939328, while the sum is 61.

The spelling of 10000109998987 in words is "ten trillion, one hundred nine million, nine hundred ninety-eight thousand, nine hundred eighty-seven".