6899449700 has 144 divisors (see below), whose sum is σ = 17804235456. Its totient is φ = 2287603200.

The previous prime is 6899449693. The next prime is 6899449709. The reversal of 6899449700 is 79449986.

It is not an unprimeable number, because it can be changed into a prime (6899449709) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1183994 + ... + 1189806.

It is an arithmetic number, because the mean of its divisors is an integer number (123640524).

Almost surely, 2^6899449700 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6899449700, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8902117728).

6899449700 is an abundant number, since it is smaller than the sum of its proper divisors (10904785756).

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

6899449700 is a wasteful number, since it uses less digits than its factorization.

6899449700 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5934 (or 5927 counting only the distinct ones).

The product of its (nonzero) digits is 3919104, while the sum is 56.

The square root of 6899449700 is about 83062.9261463862. The cubic root of 6899449700 is about 1903.7276495464.

The spelling of 6899449700 in words is "six billion, eight hundred ninety-nine million, four hundred forty-nine thousand, seven hundred".