6898065040 has 80 divisors (see below), whose sum is σ = 16210538352. Its totient is φ = 2729705472.

The previous prime is 6898065029. The next prime is 6898065089. The reversal of 6898065040 is 405608986.

It can be written as a sum of positive squares in 8 ways, for example, as 120824064 + 6777240976 = 10992^2 + 82324^2 .

It is a tau number, because it is divible by the number of its divisors (80).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3226852 + ... + 3228988.

Almost surely, 2^6898065040 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 6898065040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8105269176).

6898065040 is an abundant number, since it is smaller than the sum of its proper divisors (9312473312).

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

6898065040 is a wasteful number, since it uses less digits than its factorization.

6898065040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2564 (or 2558 counting only the distinct ones).

The product of its (nonzero) digits is 414720, while the sum is 46.

The square root of 6898065040 is about 83054.5907220065. The cubic root of 6898065040 is about 1903.6002871236.

The spelling of 6898065040 in words is "six billion, eight hundred ninety-eight million, sixty-five thousand, forty".