642626550223 has 8 divisors (see below), whose sum is σ = 736183163520. Its totient is φ = 549508142040.

The previous prime is 642626550191. The next prime is 642626550229. The reversal of 642626550223 is 322055626246.

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 642626550223 - 2⁵ = 642626550191 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 642626550223.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (642626550229) 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, 109548133 + ... + 109553998.

It is an arithmetic number, because the mean of its divisors is an integer number (92022895440).

Almost surely, 2^642626550223 is an apocalyptic number.

642626550223 is a deficient number, since it is larger than the sum of its proper divisors (93556613297).

642626550223 is a wasteful number, since it uses less digits than its factorization.

642626550223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 219102557.

The product of its (nonzero) digits is 1036800, while the sum is 43.

The spelling of 642626550223 in words is "six hundred forty-two billion, six hundred twenty-six million, five hundred fifty thousand, two hundred twenty-three".