623466146804069 has 2 divisors, whose sum is σ = 623466146804070. Its totient is φ = 623466146804068.

The previous prime is 623466146803999. The next prime is 623466146804087. The reversal of 623466146804069 is 960408641664326.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 581656796823844 + 41809349980225 = 24117562^2 + 6466015^2 .

It is a cyclic number.

It is not a de Polignac number, because 623466146804069 - 2³² = 623461851836773 is a prime.

It is a super-4 number, since 4×623466146804069⁴ (a number of 60 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is a junction number, because it is equal to n+sod(n) for n = 623466146803996 and 623466146804014.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (623466146104069) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 311733073402034 + 311733073402035.

It is an arithmetic number, because the mean of its divisors is an integer number (311733073402035).

Almost surely, 2^{623466146804069} is an apocalyptic number.

It is an amenable number.

623466146804069 is a deficient number, since it is larger than the sum of its proper divisors (1).

623466146804069 is an equidigital number, since it uses as much as digits as its factorization.

623466146804069 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 214990848, while the sum is 65.

The spelling of 623466146804069 in words is "six hundred twenty-three trillion, four hundred sixty-six billion, one hundred forty-six million, eight hundred four thousand, sixty-nine".