6875249821 has 8 divisors (see below), whose sum is σ = 7506419904. Its totient is φ = 6245104320.

The previous prime is 6875249789. The next prime is 6875249867. The reversal of 6875249821 is 1289425786.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 6875249821 - 2⁵ = 6875249789 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6875349821) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 242076 + ... + 268981.

It is an arithmetic number, because the mean of its divisors is an integer number (938302488).

Almost surely, 2^6875249821 is an apocalyptic number.

It is an amenable number.

6875249821 is a deficient number, since it is larger than the sum of its proper divisors (631170083).

6875249821 is a wasteful number, since it uses less digits than its factorization.

6875249821 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 512291.

The product of its digits is 1935360, while the sum is 52.

The square root of 6875249821 is about 82917.1262225121. The cubic root of 6875249821 is about 1901.4992617960.

The spelling of 6875249821 in words is "six billion, eight hundred seventy-five million, two hundred forty-nine thousand, eight hundred twenty-one".