6754007821 has 4 divisors (see below), whose sum is σ = 7368008544. Its totient is φ = 6140007100.

The previous prime is 6754007801. The next prime is 6754007849. The reversal of 6754007821 is 1287004576.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 6754007821 - 2²³ = 6745619213 is a prime.

It is a super-2 number, since 2×6754007821² = 91233243292258336082, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6754007801) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 307000345 + ... + 307000366.

It is an arithmetic number, because the mean of its divisors is an integer number (1842002136).

Almost surely, 2^6754007821 is an apocalyptic number.

It is an amenable number.

6754007821 is a deficient number, since it is larger than the sum of its proper divisors (614000723).

6754007821 is a wasteful number, since it uses less digits than its factorization.

6754007821 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 614000722.

The product of its (nonzero) digits is 94080, while the sum is 40.

The square root of 6754007821 is about 82182.7708281973. The cubic root of 6754007821 is about 1890.2555406928.

The spelling of 6754007821 in words is "six billion, seven hundred fifty-four million, seven thousand, eight hundred twenty-one".