183990910949 has 4 divisors (see below), whose sum is σ = 183993757740. Its totient is φ = 183988064160.

The previous prime is 183990910931. The next prime is 183990910973. The reversal of 183990910949 is 949019099381.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 105223681924 + 78767229025 = 324382^2 + 280655^2 .

It is a cyclic number.

It is not a de Polignac number, because 183990910949 - 2⁸ = 183990910693 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 183990910891 and 183990910900.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (183990910919) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1324142 + ... + 1456479.

It is an arithmetic number, because the mean of its divisors is an integer number (45998439435).

Almost surely, 2^183990910949 is an apocalyptic number.

It is an amenable number.

183990910949 is a deficient number, since it is larger than the sum of its proper divisors (2846791).

183990910949 is an equidigital number, since it uses as much as digits as its factorization.

183990910949 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2846790.

The product of its (nonzero) digits is 5668704, while the sum is 62.

The spelling of 183990910949 in words is "one hundred eighty-three billion, nine hundred ninety million, nine hundred ten thousand, nine hundred forty-nine".