6689269428 has 24 divisors (see below), whose sum is σ = 16429785120. Its totient is φ = 2112400800.

The previous prime is 6689269397. The next prime is 6689269441. The reversal of 6689269428 is 8249629866.

It is a congruent number.

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, 14669223 + ... + 14669678.

It is an arithmetic number, because the mean of its divisors is an integer number (684574380).

Almost surely, 2^6689269428 is an apocalyptic number.

It is an amenable number.

6689269428 is an abundant number, since it is smaller than the sum of its proper divisors (9740515692).

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

6689269428 is a wasteful number, since it uses less digits than its factorization.

6689269428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29338927 (or 29338925 counting only the distinct ones).

The product of its digits is 17915904, while the sum is 60.

The square root of 6689269428 is about 81787.9540519263. The cubic root of 6689269428 is about 1884.1966597511.

The spelling of 6689269428 in words is "six billion, six hundred eighty-nine million, two hundred sixty-nine thousand, four hundred twenty-eight".