551436621545343 has 8 divisors (see below), whose sum is σ = 735318939270528. Its totient is φ = 367589359091864.

The previous prime is 551436621545333. The next prime is 551436621545419. The reversal of 551436621545343 is 343545126634155.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 551436621545343 - 2⁵ = 551436621545311 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (551436621545333) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8763781221 + ... + 8763844142.

It is an arithmetic number, because the mean of its divisors is an integer number (91914867408816).

Almost surely, 2^{551436621545343} is an apocalyptic number.

551436621545343 is a deficient number, since it is larger than the sum of its proper divisors (183882317725185).

551436621545343 is a wasteful number, since it uses less digits than its factorization.

551436621545343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17527635853.

The product of its digits is 77760000, while the sum is 57.

The spelling of 551436621545343 in words is "five hundred fifty-one trillion, four hundred thirty-six billion, six hundred twenty-one million, five hundred forty-five thousand, three hundred forty-three".