727963925813 has 2 divisors, whose sum is σ = 727963925814. Its totient is φ = 727963925812.

The previous prime is 727963925803. The next prime is 727963925861. The reversal of 727963925813 is 318529369727.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 450453060964 + 277510864849 = 671158^2 + 526793^2 .

It is an emirp because it is prime and its reverse (318529369727) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 727963925813 - 2²⁰ = 727962877237 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (727963925803) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 363981962906 + 363981962907.

It is an arithmetic number, because the mean of its divisors is an integer number (363981962907).

Almost surely, 2^727963925813 is an apocalyptic number.

It is an amenable number.

727963925813 is a deficient number, since it is larger than the sum of its proper divisors (1).

727963925813 is an equidigital number, since it uses as much as digits as its factorization.

727963925813 is an evil number, because the sum of its binary digits is even.

The product of its digits is 34292160, while the sum is 62.

The spelling of 727963925813 in words is "seven hundred twenty-seven billion, nine hundred sixty-three million, nine hundred twenty-five thousand, eight hundred thirteen".