6626472643 has 8 divisors (see below), whose sum is σ = 7642590560. Its totient is φ = 5627724480.

The previous prime is 6626472637. The next prime is 6626472667. The reversal of 6626472643 is 3462746266.

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

It is not a de Polignac number, because 6626472643 - 2¹³ = 6626464451 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 6626472593 and 6626472602.

It is not an unprimeable number, because it can be changed into a prime (6626472343) 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, 4341618 + ... + 4343143.

It is an arithmetic number, because the mean of its divisors is an integer number (955323820).

Almost surely, 2^6626472643 is an apocalyptic number.

6626472643 is a deficient number, since it is larger than the sum of its proper divisors (1016117917).

6626472643 is a wasteful number, since it uses less digits than its factorization.

6626472643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8684877.

The product of its digits is 1741824, while the sum is 46.

The square root of 6626472643 is about 81403.1488518718. The cubic root of 6626472643 is about 1878.2820282578.

The spelling of 6626472643 in words is "six billion, six hundred twenty-six million, four hundred seventy-two thousand, six hundred forty-three".