713928957821 has 2 divisors, whose sum is σ = 713928957822. Its totient is φ = 713928957820.

The previous prime is 713928957779. The next prime is 713928957887. The reversal of 713928957821 is 128759829317.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 582457449721 + 131471508100 = 763189^2 + 362590^2 .

It is a cyclic number.

It is not a de Polignac number, because 713928957821 - 2³⁸ = 439051050877 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (713928951821) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 356964478910 + 356964478911.

It is an arithmetic number, because the mean of its divisors is an integer number (356964478911).

Almost surely, 2^713928957821 is an apocalyptic number.

It is an amenable number.

713928957821 is a deficient number, since it is larger than the sum of its proper divisors (1).

713928957821 is an equidigital number, since it uses as much as digits as its factorization.

713928957821 is an evil number, because the sum of its binary digits is even.

The product of its digits is 15240960, while the sum is 62.

The spelling of 713928957821 in words is "seven hundred thirteen billion, nine hundred twenty-eight million, nine hundred fifty-seven thousand, eight hundred twenty-one".