1949443763 has 2 divisors, whose sum is σ = 1949443764. Its totient is φ = 1949443762.

The previous prime is 1949443751. The next prime is 1949443787. The reversal of 1949443763 is 3673449491.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1949443763 - 2⁴ = 1949443747 is a prime.

It is not a weakly prime, because it can be changed into another prime (1949443733) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 974721881 + 974721882.

It is an arithmetic number, because the mean of its divisors is an integer number (974721882).

Almost surely, 2^1949443763 is an apocalyptic number.

1949443763 is a deficient number, since it is larger than the sum of its proper divisors (1).

1949443763 is an equidigital number, since it uses as much as digits as its factorization.

1949443763 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1959552, while the sum is 50.

The square root of 1949443763 is about 44152.5057386328. The cubic root of 1949443763 is about 1249.2141755274.

The spelling of 1949443763 in words is "one billion, nine hundred forty-nine million, four hundred forty-three thousand, seven hundred sixty-three".