6691068489 has 32 divisors (see below), whose sum is σ = 10651705344. Its totient is φ = 3655520640.

The previous prime is 6691068457. The next prime is 6691068499. The reversal of 6691068489 is 9848601966.

It is not a de Polignac number, because 6691068489 - 2⁵ = 6691068457 is a prime.

It is not an unprimeable number, because it can be changed into a prime (6691068499) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7884 + ... + 115949.

It is an arithmetic number, because the mean of its divisors is an integer number (332865792).

Almost surely, 2^6691068489 is an apocalyptic number.

It is an amenable number.

6691068489 is a deficient number, since it is larger than the sum of its proper divisors (3960636855).

6691068489 is a wasteful number, since it uses less digits than its factorization.

6691068489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 123957.

The product of its (nonzero) digits is 4478976, while the sum is 57.

The square root of 6691068489 is about 81798.9516375363. The cubic root of 6691068489 is about 1884.3655611495.

The spelling of 6691068489 in words is "six billion, six hundred ninety-one million, sixty-eight thousand, four hundred eighty-nine".