6888393920 has 56 divisors (see below), whose sum is σ = 16565471568. Its totient is φ = 2728064000.

The previous prime is 6888393913. The next prime is 6888393929. The reversal of 6888393920 is 293938886.

It is not an unprimeable number, because it can be changed into a prime (6888393929) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 74246 + ... + 138885.

Almost surely, 2^6888393920 is an apocalyptic number.

It is an amenable number.

6888393920 is an abundant number, since it is smaller than the sum of its proper divisors (9677077648).

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

6888393920 is a wasteful number, since it uses less digits than its factorization.

6888393920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 213249 (or 213239 counting only the distinct ones).

The product of its (nonzero) digits is 4478976, while the sum is 56.

The square root of 6888393920 is about 82996.3488353554. The cubic root of 6888393920 is about 1902.7102521635.

The spelling of 6888393920 in words is "six billion, eight hundred eighty-eight million, three hundred ninety-three thousand, nine hundred twenty".