6226626621 has 4 divisors (see below), whose sum is σ = 8302168832. Its totient is φ = 4151084412.

The previous prime is 6226626607. The next prime is 6226626641. The reversal of 6226626621 is 1266266226.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 6226626621 - 2⁶ = 6226626557 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 6226626621.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6226626641) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1037771101 + ... + 1037771106.

It is an arithmetic number, because the mean of its divisors is an integer number (2075542208).

Almost surely, 2^6226626621 is an apocalyptic number.

It is an amenable number.

6226626621 is a deficient number, since it is larger than the sum of its proper divisors (2075542211).

6226626621 is a wasteful number, since it uses less digits than its factorization.

6226626621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2075542210.

The product of its digits is 124416, while the sum is 39.

The square root of 6226626621 is about 78908.9768087256. The cubic root of 6226626621 is about 1839.7166605496.

The spelling of 6226626621 in words is "six billion, two hundred twenty-six million, six hundred twenty-six thousand, six hundred twenty-one".