551629826268 has 12 divisors (see below), whose sum is σ = 1287136261320. Its totient is φ = 183876608752.

The previous prime is 551629826261. The next prime is 551629826303. The reversal of 551629826268 is 862628926155.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (551629826261) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22984576083 + ... + 22984576106.

It is an arithmetic number, because the mean of its divisors is an integer number (107261355110).

Almost surely, 2^551629826268 is an apocalyptic number.

It is an amenable number.

551629826268 is an abundant number, since it is smaller than the sum of its proper divisors (735506435052).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

551629826268 is a wasteful number, since it uses less digits than its factorization.

551629826268 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45969152196 (or 45969152194 counting only the distinct ones).

The product of its digits is 24883200, while the sum is 60.

The spelling of 551629826268 in words is "five hundred fifty-one billion, six hundred twenty-nine million, eight hundred twenty-six thousand, two hundred sixty-eight".