6642413613 has 32 divisors (see below), whose sum is σ = 10749686400. Its totient is φ = 4020278400.

The previous prime is 6642413599. The next prime is 6642413651. The reversal of 6642413613 is 3163142466.

6642413613 is a `hidden beast` number, since 6 + 6 + 4 + 24 + 13 + 613 = 666.

6642413613 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 6642413613 - 2¹⁰ = 6642412589 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6642413653) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 211323 + ... + 240711.

It is an arithmetic number, because the mean of its divisors is an integer number (335927700).

Almost surely, 2^6642413613 is an apocalyptic number.

It is an amenable number.

6642413613 is a deficient number, since it is larger than the sum of its proper divisors (4107272787).

6642413613 is a wasteful number, since it uses less digits than its factorization.

6642413613 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30170 (or 30164 counting only the distinct ones).

The product of its digits is 62208, while the sum is 36.

The square root of 6642413613 is about 81501.0037545551. The cubic root of 6642413613 is about 1879.7869847869.

The spelling of 6642413613 in words is "six billion, six hundred forty-two million, four hundred thirteen thousand, six hundred thirteen".