10000109987 has 4 divisors (see below), whose sum is σ = 11428697136. Its totient is φ = 8571522840.

The previous prime is 10000109981. The next prime is 10000110007. The reversal of 10000109987 is 78990100001.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 10000109987 - 2²⁴ = 9983332771 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10000109981) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 714293564 + ... + 714293577.

It is an arithmetic number, because the mean of its divisors is an integer number (2857174284).

Almost surely, 2^10000109987 is an apocalyptic number.

10000109987 is a deficient number, since it is larger than the sum of its proper divisors (1428587149).

10000109987 is an equidigital number, since it uses as much as digits as its factorization.

10000109987 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1428587148.

The product of its (nonzero) digits is 4536, while the sum is 35.

Adding to 10000109987 its reverse (78990100001), we get a palindrome (88990209988).

The spelling of 10000109987 in words is "ten billion, one hundred nine thousand, nine hundred eighty-seven".