10109680891 has 2 divisors, whose sum is σ = 10109680892. Its totient is φ = 10109680890.

The previous prime is 10109680877. The next prime is 10109680901. The reversal of 10109680891 is 19808690101.

It is a happy number.

It is a strong prime.

It is an emirp because it is prime and its reverse (19808690101) is a distict prime. It is also a bemirp because it and its reverse can be mirrored producing other two distinct primes, 16808960101 and 10106980861.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10109680891 is a prime.

It is not a weakly prime, because it can be changed into another prime (10109680831) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5054840445 + 5054840446.

It is an arithmetic number, because the mean of its divisors is an integer number (5054840446).

Almost surely, 2^10109680891 is an apocalyptic number.

10109680891 is a deficient number, since it is larger than the sum of its proper divisors (1).

10109680891 is an equidigital number, since it uses as much as digits as its factorization.

10109680891 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 31104, while the sum is 43.

The spelling of 10109680891 in words is "ten billion, one hundred nine million, six hundred eighty thousand, eight hundred ninety-one".