6680268442 has 16 divisors (see below), whose sum is σ = 10458175680. Its totient is φ = 3194268352.

The previous prime is 6680268431. The next prime is 6680268449. The reversal of 6680268442 is 2448620866.

It is a super-2 number, since 2×6680268442² = 89251972914362214728, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (46).

It is a junction number, because it is equal to n+sod(n) for n = 6680268392 and 6680268401.

It is not an unprimeable number, because it can be changed into a prime (6680268449) 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 7 ways as a sum of consecutive naturals, for example, 280809 + ... + 303667.

It is an arithmetic number, because the mean of its divisors is an integer number (653635980).

Almost surely, 2^6680268442 is an apocalyptic number.

6680268442 is a deficient number, since it is larger than the sum of its proper divisors (3777907238).

6680268442 is a wasteful number, since it uses less digits than its factorization.

6680268442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29237.

The product of its (nonzero) digits is 884736, while the sum is 46.

The square root of 6680268442 is about 81732.9091737227. The cubic root of 6680268442 is about 1883.3511643146.

The spelling of 6680268442 in words is "six billion, six hundred eighty million, two hundred sixty-eight thousand, four hundred forty-two".