718409486623 has 2 divisors, whose sum is σ = 718409486624. Its totient is φ = 718409486622.

The previous prime is 718409486603. The next prime is 718409486687. The reversal of 718409486623 is 326684904817.

It is a happy number.

It is a weak prime.

It is an emirp because it is prime and its reverse (326684904817) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 718409486623 - 2⁹ = 718409486111 is a prime.

It is a super-2 number, since 2×718409486623² (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 (718409486603) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 359204743311 + 359204743312.

It is an arithmetic number, because the mean of its divisors is an integer number (359204743312).

Almost surely, 2^718409486623 is an apocalyptic number.

718409486623 is a deficient number, since it is larger than the sum of its proper divisors (1).

718409486623 is an equidigital number, since it uses as much as digits as its factorization.

718409486623 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 13934592, while the sum is 58.

The spelling of 718409486623 in words is "seven hundred eighteen billion, four hundred nine million, four hundred eighty-six thousand, six hundred twenty-three".