223988343191719 has 2 divisors, whose sum is σ = 223988343191720. Its totient is φ = 223988343191718.

The previous prime is 223988343191633. The next prime is 223988343191749. The reversal of 223988343191719 is 917191343889322.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-223988343191719 is a prime.

It is a super-2 number, since 2×223988343191719² (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (223988343191749) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111994171595859 + 111994171595860.

It is an arithmetic number, because the mean of its divisors is an integer number (111994171595860).

Almost surely, 2^{223988343191719} is an apocalyptic number.

223988343191719 is a deficient number, since it is larger than the sum of its proper divisors (1).

223988343191719 is an equidigital number, since it uses as much as digits as its factorization.

223988343191719 is an evil number, because the sum of its binary digits is even.

The product of its digits is 141087744, while the sum is 70.

The spelling of 223988343191719 in words is "two hundred twenty-three trillion, nine hundred eighty-eight billion, three hundred forty-three million, one hundred ninety-one thousand, seven hundred nineteen".