623354424212 has 12 divisors (see below), whose sum is σ = 1174783338036. Its totient is φ = 287702041920.

The previous prime is 623354424197. The next prime is 623354424293. The reversal of 623354424212 is 212424453326.

It can be written as a sum of positive squares in 2 ways, for example, as 380595221776 + 242759202436 = 616924^2 + 492706^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5993792489 + ... + 5993792592.

It is an arithmetic number, because the mean of its divisors is an integer number (97898611503).

Almost surely, 2^623354424212 is an apocalyptic number.

It is an amenable number.

623354424212 is a deficient number, since it is larger than the sum of its proper divisors (551428913824).

623354424212 is a wasteful number, since it uses less digits than its factorization.

623354424212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11987585098 (or 11987585096 counting only the distinct ones).

The product of its digits is 276480, while the sum is 38.

Adding to 623354424212 its reverse (212424453326), we get a palindrome (835778877538).

The spelling of 623354424212 in words is "six hundred twenty-three billion, three hundred fifty-four million, four hundred twenty-four thousand, two hundred twelve".