6940644983 has 2 divisors, whose sum is σ = 6940644984. Its totient is φ = 6940644982.

The previous prime is 6940644967. The next prime is 6940645003. The reversal of 6940644983 is 3894460496.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 6940644983 - 2⁴ = 6940644967 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6940644283) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3470322491 + 3470322492.

It is an arithmetic number, because the mean of its divisors is an integer number (3470322492).

Almost surely, 2^6940644983 is an apocalyptic number.

6940644983 is a deficient number, since it is larger than the sum of its proper divisors (1).

6940644983 is an equidigital number, since it uses as much as digits as its factorization.

6940644983 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4478976, while the sum is 53.

The square root of 6940644983 is about 83310.5334456574. The cubic root of 6940644983 is about 1907.5090636366.

The spelling of 6940644983 in words is "six billion, nine hundred forty million, six hundred forty-four thousand, nine hundred eighty-three".