10399187849 has 2 divisors, whose sum is σ = 10399187850. Its totient is φ = 10399187848.

The previous prime is 10399187819. The next prime is 10399187941. The reversal of 10399187849 is 94878199301.

10399187849 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10336382224 + 62805625 = 101668^2 + 7925^2 .

It is a cyclic number.

It is not a de Polignac number, because 10399187849 - 2²⁸ = 10130752393 is a prime.

It is not a weakly prime, because it can be changed into another prime (10399187819) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5199593924 + 5199593925.

It is an arithmetic number, because the mean of its divisors is an integer number (5199593925).

Almost surely, 2^10399187849 is an apocalyptic number.

It is an amenable number.

10399187849 is a deficient number, since it is larger than the sum of its proper divisors (1).

10399187849 is an equidigital number, since it uses as much as digits as its factorization.

10399187849 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3919104, while the sum is 59.

The spelling of 10399187849 in words is "ten billion, three hundred ninety-nine million, one hundred eighty-seven thousand, eight hundred forty-nine".