1949080013 has 2 divisors, whose sum is σ = 1949080014. Its totient is φ = 1949080012.

The previous prime is 1949079997. The next prime is 1949080027. The reversal of 1949080013 is 3100809491.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1814589604 + 134490409 = 42598^2 + 11597^2 .

It is a cyclic number.

It is not a de Polignac number, because 1949080013 - 2⁴ = 1949079997 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1949085013) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 974540006 + 974540007.

It is an arithmetic number, because the mean of its divisors is an integer number (974540007).

Almost surely, 2^1949080013 is an apocalyptic number.

It is an amenable number.

1949080013 is a deficient number, since it is larger than the sum of its proper divisors (1).

1949080013 is an equidigital number, since it uses as much as digits as its factorization.

1949080013 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7776, while the sum is 35.

The square root of 1949080013 is about 44148.3863012002. The cubic root of 1949080013 is about 1249.1364730343.

The spelling of 1949080013 in words is "one billion, nine hundred forty-nine million, eighty thousand, thirteen".