6881553400 has 24 divisors (see below), whose sum is σ = 15999612120. Its totient is φ = 2752621280.

The previous prime is 6881553313. The next prime is 6881553421. The reversal of 6881553400 is 43551886.

It is a Harshad number since it is a multiple of its sum of digits (40).

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 5 ways as a sum of consecutive naturals, for example, 17203684 + ... + 17204083.

It is an arithmetic number, because the mean of its divisors is an integer number (666650505).

Almost surely, 2^6881553400 is an apocalyptic number.

It is an amenable number.

6881553400 is an abundant number, since it is smaller than the sum of its proper divisors (9118058720).

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

6881553400 is a wasteful number, since it uses less digits than its factorization.

6881553400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34407783 (or 34407774 counting only the distinct ones).

The product of its (nonzero) digits is 115200, while the sum is 40.

The square root of 6881553400 is about 82955.1288348104. The cubic root of 6881553400 is about 1902.0802147208.

The spelling of 6881553400 in words is "six billion, eight hundred eighty-one million, five hundred fifty-three thousand, four hundred".