6642826880 has 64 divisors (see below), whose sum is σ = 16571001600. Its totient is φ = 2541597696.

The previous prime is 6642826871. The next prime is 6642826937. The reversal of 6642826880 is 886282466.

It is a tau number, because it is divible by the number of its divisors (64).

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 210920 + ... + 240359.

It is an arithmetic number, because the mean of its divisors is an integer number (258921900).

Almost surely, 2^6642826880 is an apocalyptic number.

It is an amenable number.

6642826880 is an abundant number, since it is smaller than the sum of its proper divisors (9928174720).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6642826880 is a wasteful number, since it uses less digits than its factorization.

6642826880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 451321 (or 451309 counting only the distinct ones).

The product of its (nonzero) digits is 1769472, while the sum is 50.

The square root of 6642826880 is about 81503.5390642640. The cubic root of 6642826880 is about 1879.8259684988.

The spelling of 6642826880 in words is "six billion, six hundred forty-two million, eight hundred twenty-six thousand, eight hundred eighty".