10000000999949 has 2 divisors, whose sum is σ = 10000000999950. Its totient is φ = 10000000999948.

The previous prime is 10000000999931. The next prime is 10000001000029. The reversal of 10000000999949 is 94999900000001.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8318551956100 + 1681449043849 = 2884190^2 + 1296707^2 .

It is a cyclic number.

It is not a de Polignac number, because 10000000999949 - 2²⁰ = 9999999951373 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 10000000999897 and 10000000999906.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10000000999649) 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, 5000000499974 + 5000000499975.

It is an arithmetic number, because the mean of its divisors is an integer number (5000000499975).

Almost surely, 2^{10000000999949} is an apocalyptic number.

It is an amenable number.

10000000999949 is a deficient number, since it is larger than the sum of its proper divisors (1).

10000000999949 is an equidigital number, since it uses as much as digits as its factorization.

10000000999949 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 236196, while the sum is 50.

The spelling of 10000000999949 in words is "ten trillion, nine hundred ninety-nine thousand, nine hundred forty-nine".