713385766981 has 2 divisors, whose sum is σ = 713385766982. Its totient is φ = 713385766980.

The previous prime is 713385766859. The next prime is 713385767041. The reversal of 713385766981 is 189667583317.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 448022729025 + 265363037956 = 669345^2 + 515134^2 .

It is an emirp because it is prime and its reverse (189667583317) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 713385766981 - 2³⁷ = 575946813509 is a prime.

It is a super-2 number, since 2×713385766981² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (713385766381) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 356692883490 + 356692883491.

It is an arithmetic number, because the mean of its divisors is an integer number (356692883491).

Almost surely, 2^713385766981 is an apocalyptic number.

It is an amenable number.

713385766981 is a deficient number, since it is larger than the sum of its proper divisors (1).

713385766981 is an equidigital number, since it uses as much as digits as its factorization.

713385766981 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 45722880, while the sum is 64.

The spelling of 713385766981 in words is "seven hundred thirteen billion, three hundred eighty-five million, seven hundred sixty-six thousand, nine hundred eighty-one".