1949265863 has 2 divisors, whose sum is σ = 1949265864. Its totient is φ = 1949265862.

The previous prime is 1949265823. The next prime is 1949265869. The reversal of 1949265863 is 3685629491.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1949265863 - 2¹⁴ = 1949249479 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1949265869) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 974632931 + 974632932.

It is an arithmetic number, because the mean of its divisors is an integer number (974632932).

Almost surely, 2^1949265863 is an apocalyptic number.

1949265863 is a deficient number, since it is larger than the sum of its proper divisors (1).

1949265863 is an equidigital number, since it uses as much as digits as its factorization.

1949265863 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2799360, while the sum is 53.

The square root of 1949265863 is about 44150.4910844715. The cubic root of 1949265863 is about 1249.1761746087.

The spelling of 1949265863 in words is "one billion, nine hundred forty-nine million, two hundred sixty-five thousand, eight hundred sixty-three".