6821045495 has 16 divisors (see below), whose sum is σ = 9137031552. Its totient is φ = 4845392160.

The previous prime is 6821045453. The next prime is 6821045503. The reversal of 6821045495 is 5945401286.

It is not a de Polignac number, because 6821045495 - 2¹⁰ = 6821044471 is a prime.

It is a congruent number.

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, 1439717 + ... + 1444446.

It is an arithmetic number, because the mean of its divisors is an integer number (571064472).

Almost surely, 2^6821045495 is an apocalyptic number.

6821045495 is a deficient number, since it is larger than the sum of its proper divisors (2315986057).

6821045495 is a wasteful number, since it uses less digits than its factorization.

6821045495 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2884222.

The product of its (nonzero) digits is 345600, while the sum is 44.

The square root of 6821045495 is about 82589.6209883542. The cubic root of 6821045495 is about 1896.4889447351.

The spelling of 6821045495 in words is "six billion, eight hundred twenty-one million, forty-five thousand, four hundred ninety-five".