6642626467 has 2 divisors, whose sum is σ = 6642626468. Its totient is φ = 6642626466.

The previous prime is 6642626399. The next prime is 6642626503. The reversal of 6642626467 is 7646262466.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 6642626467 - 2¹¹ = 6642624419 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 6642626467.

It is not a weakly prime, because it can be changed into another prime (6642636467) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3321313233 + 3321313234.

It is an arithmetic number, because the mean of its divisors is an integer number (3321313234).

Almost surely, 2^6642626467 is an apocalyptic number.

6642626467 is a deficient number, since it is larger than the sum of its proper divisors (1).

6642626467 is an equidigital number, since it uses as much as digits as its factorization.

6642626467 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3483648, while the sum is 49.

The square root of 6642626467 is about 81502.3095807720. The cubic root of 6642626467 is about 1879.8070636281.

The spelling of 6642626467 in words is "six billion, six hundred forty-two million, six hundred twenty-six thousand, four hundred sixty-seven".