1949729713 has 2 divisors, whose sum is σ = 1949729714. Its totient is φ = 1949729712.

The previous prime is 1949729687. The next prime is 1949729741. The reversal of 1949729713 is 3179279491.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1800474624 + 149255089 = 42432^2 + 12217^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1949729713 is a prime.

It is not a weakly prime, because it can be changed into another prime (1949729773) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 974864856 + 974864857.

It is an arithmetic number, because the mean of its divisors is an integer number (974864857).

Almost surely, 2^1949729713 is an apocalyptic number.

It is an amenable number.

1949729713 is a deficient number, since it is larger than the sum of its proper divisors (1).

1949729713 is an equidigital number, since it uses as much as digits as its factorization.

1949729713 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 857304, while the sum is 52.

The square root of 1949729713 is about 44155.7438279552. The cubic root of 1949729713 is about 1249.2752519801.

The spelling of 1949729713 in words is "one billion, nine hundred forty-nine million, seven hundred twenty-nine thousand, seven hundred thirteen".