620324440104623 has 2 divisors, whose sum is σ = 620324440104624. Its totient is φ = 620324440104622.

The previous prime is 620324440104619. The next prime is 620324440104643. The reversal of 620324440104623 is 326401044423026.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 620324440104623 - 2² = 620324440104619 is a prime.

It is a super-3 number, since 3×620324440104623³ (a number of 45 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (620324440104643) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 310162220052311 + 310162220052312.

It is an arithmetic number, because the mean of its divisors is an integer number (310162220052312).

Almost surely, 2^{620324440104623} is an apocalyptic number.

620324440104623 is a deficient number, since it is larger than the sum of its proper divisors (1).

620324440104623 is an equidigital number, since it uses as much as digits as its factorization.

620324440104623 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 663552, while the sum is 41.

Adding to 620324440104623 its reverse (326401044423026), we get a palindrome (946725484527649).

The spelling of 620324440104623 in words is "six hundred twenty trillion, three hundred twenty-four billion, four hundred forty million, one hundred four thousand, six hundred twenty-three".