623218482456049 has 2 divisors, whose sum is σ = 623218482456050. Its totient is φ = 623218482456048.

The previous prime is 623218482456047. The next prime is 623218482456067. The reversal of 623218482456049 is 940654284812326.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 513801275824225 + 109417206631824 = 22667185^2 + 10460268^2 .

It is a cyclic number.

It is not a de Polignac number, because 623218482456049 - 2¹ = 623218482456047 is a prime.

Together with 623218482456047, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (623218482456043) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 311609241228024 + 311609241228025.

It is an arithmetic number, because the mean of its divisors is an integer number (311609241228025).

Almost surely, 2^{623218482456049} is an apocalyptic number.

It is an amenable number.

623218482456049 is a deficient number, since it is larger than the sum of its proper divisors (1).

623218482456049 is an equidigital number, since it uses as much as digits as its factorization.

623218482456049 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 159252480, while the sum is 64.

The spelling of 623218482456049 in words is "six hundred twenty-three trillion, two hundred eighteen billion, four hundred eighty-two million, four hundred fifty-six thousand, forty-nine".