6899451084 has 18 divisors (see below), whose sum is σ = 17440279220. Its totient is φ = 2299817016.

The previous prime is 6899451077. The next prime is 6899451089. The reversal of 6899451084 is 4801549986.

It is a tau number, because it is divible by the number of its divisors (18).

It is a self number, because there is not a number n which added to its sum of digits gives 6899451084.

It is not an unprimeable number, because it can be changed into a prime (6899451089) 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 5 ways as a sum of consecutive naturals, for example, 95825674 + ... + 95825745.

Almost surely, 2^6899451084 is an apocalyptic number.

It is an amenable number.

6899451084 is an abundant number, since it is smaller than the sum of its proper divisors (10540828136).

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

6899451084 is a wasteful number, since it uses less digits than its factorization.

6899451084 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 191651429 (or 191651424 counting only the distinct ones).

The product of its (nonzero) digits is 2488320, while the sum is 54.

The square root of 6899451084 is about 83062.9344774190. The cubic root of 6899451084 is about 1903.7277768396.

The spelling of 6899451084 in words is "six billion, eight hundred ninety-nine million, four hundred fifty-one thousand, eighty-four".