6899619321 has 48 divisors (see below), whose sum is σ = 12033174400. Its totient is φ = 3721469184.

The previous prime is 6899619313. The next prime is 6899619323. The reversal of 6899619321 is 1239169986.

It is not a de Polignac number, because 6899619321 - 2³ = 6899619313 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (6899619323) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 321165 + ... + 341973.

Almost surely, 2^6899619321 is an apocalyptic number.

It is an amenable number.

6899619321 is a deficient number, since it is larger than the sum of its proper divisors (5133555079).

6899619321 is a wasteful number, since it uses less digits than its factorization.

6899619321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21118 (or 21115 counting only the distinct ones).

The product of its digits is 1259712, while the sum is 54.

The square root of 6899619321 is about 83063.9471792666. The cubic root of 6899619321 is about 1903.7432502854.

The spelling of 6899619321 in words is "six billion, eight hundred ninety-nine million, six hundred nineteen thousand, three hundred twenty-one".