6921740803 has 2 divisors, whose sum is σ = 6921740804. Its totient is φ = 6921740802.

The previous prime is 6921740789. The next prime is 6921740887. The reversal of 6921740803 is 3080471296.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 6921740803 - 2¹³ = 6921732611 is a prime.

It is not a weakly prime, because it can be changed into another prime (6921740003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3460870401 + 3460870402.

It is an arithmetic number, because the mean of its divisors is an integer number (3460870402).

Almost surely, 2^6921740803 is an apocalyptic number.

6921740803 is a deficient number, since it is larger than the sum of its proper divisors (1).

6921740803 is an equidigital number, since it uses as much as digits as its factorization.

6921740803 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 72576, while the sum is 40.

The square root of 6921740803 is about 83196.9999639410. Note that the first 4 decimals coincide. The cubic root of 6921740803 is about 1905.7756664720.

The spelling of 6921740803 in words is "six billion, nine hundred twenty-one million, seven hundred forty thousand, eight hundred three".