1949163907 has 2 divisors, whose sum is σ = 1949163908. Its totient is φ = 1949163906.

The previous prime is 1949163893. The next prime is 1949163941. The reversal of 1949163907 is 7093619491.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1949163907 is a prime.

It is not a weakly prime, because it can be changed into another prime (1949163947) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 974581953 + 974581954.

It is an arithmetic number, because the mean of its divisors is an integer number (974581954).

Almost surely, 2^1949163907 is an apocalyptic number.

1949163907 is a deficient number, since it is larger than the sum of its proper divisors (1).

1949163907 is an equidigital number, since it uses as much as digits as its factorization.

1949163907 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 367416, while the sum is 49.

The square root of 1949163907 is about 44149.3364276294. The cubic root of 1949163907 is about 1249.1543949173.

The spelling of 1949163907 in words is "one billion, nine hundred forty-nine million, one hundred sixty-three thousand, nine hundred seven".