100000999849 has 2 divisors, whose sum is σ = 100000999850. Its totient is φ = 100000999848.

The previous prime is 100000999829. The next prime is 100000999873. The reversal of 100000999849 is 948999000001.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 85334094400 + 14666905449 = 292120^2 + 121107^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-100000999849 is a prime.

It is not a weakly prime, because it can be changed into another prime (100000999829) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50000499924 + 50000499925.

It is an arithmetic number, because the mean of its divisors is an integer number (50000499925).

Almost surely, 2^100000999849 is an apocalyptic number.

It is an amenable number.

100000999849 is a deficient number, since it is larger than the sum of its proper divisors (1).

100000999849 is an equidigital number, since it uses as much as digits as its factorization.

100000999849 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 209952, while the sum is 49.

The spelling of 100000999849 in words is "one hundred billion, nine hundred ninety-nine thousand, eight hundred forty-nine".