9980109859 has 2 divisors, whose sum is σ = 9980109860. Its totient is φ = 9980109858.

The previous prime is 9980109857. The next prime is 9980109911. The reversal of 9980109859 is 9589010899.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 9980109859 - 2¹ = 9980109857 is a prime.

Together with 9980109857, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (9980109857) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4990054929 + 4990054930.

It is an arithmetic number, because the mean of its divisors is an integer number (4990054930).

Almost surely, 2^9980109859 is an apocalyptic number.

9980109859 is a deficient number, since it is larger than the sum of its proper divisors (1).

9980109859 is an equidigital number, since it uses as much as digits as its factorization.

9980109859 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2099520, while the sum is 58.

The square root of 9980109859 is about 99900.4997935446. The cubic root of 9980109859 is about 2153.0053416225.

The spelling of 9980109859 in words is "nine billion, nine hundred eighty million, one hundred nine thousand, eight hundred fifty-nine".