713801622607981 has 4 divisors (see below), whose sum is σ = 714683948471100. Its totient is φ = 712919296744864.

The previous prime is 713801622607943. The next prime is 713801622607993. The reversal of 713801622607981 is 189706226108317.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 608408300092356 + 105393322515625 = 24665934^2 + 10266125^2 .

It is a cyclic number.

It is not a de Polignac number, because 713801622607981 - 2²³ = 713801614219373 is a prime.

It is a super-2 number, since 2×713801622607981² (a number of 31 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (713801622607681) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 441162930346 + ... + 441162931963.

It is an arithmetic number, because the mean of its divisors is an integer number (178670987117775).

Almost surely, 2^{713801622607981} is an apocalyptic number.

It is an amenable number.

713801622607981 is a deficient number, since it is larger than the sum of its proper divisors (882325863119).

713801622607981 is an equidigital number, since it uses as much as digits as its factorization.

713801622607981 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 882325863118.

The product of its (nonzero) digits is 12192768, while the sum is 61.

The spelling of 713801622607981 in words is "seven hundred thirteen trillion, eight hundred one billion, six hundred twenty-two million, six hundred seven thousand, nine hundred eighty-one".