2049973943 has 2 divisors, whose sum is σ = 2049973944. Its totient is φ = 2049973942.

The previous prime is 2049973867. The next prime is 2049973957. The reversal of 2049973943 is 3493799402.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2049973943 - 2¹⁶ = 2049908407 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2049973891 and 2049973900.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2049943943) 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, 1024986971 + 1024986972.

It is an arithmetic number, because the mean of its divisors is an integer number (1024986972).

Almost surely, 2^2049973943 is an apocalyptic number.

2049973943 is a deficient number, since it is larger than the sum of its proper divisors (1).

2049973943 is an equidigital number, since it uses as much as digits as its factorization.

2049973943 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1469664, while the sum is 50.

The square root of 2049973943 is about 45276.6379383452. The cubic root of 2049973943 is about 1270.3287104577.

The spelling of 2049973943 in words is "two billion, forty-nine million, nine hundred seventy-three thousand, nine hundred forty-three".