6940975693 has 2 divisors, whose sum is σ = 6940975694. Its totient is φ = 6940975692.

The previous prime is 6940975597. The next prime is 6940975697. The reversal of 6940975693 is 3965790496.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6103046884 + 837928809 = 78122^2 + 28947^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6940975693 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6940975697) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3470487846 + 3470487847.

It is an arithmetic number, because the mean of its divisors is an integer number (3470487847).

Almost surely, 2^6940975693 is an apocalyptic number.

It is an amenable number.

6940975693 is a deficient number, since it is larger than the sum of its proper divisors (1).

6940975693 is an equidigital number, since it uses as much as digits as its factorization.

6940975693 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 11022480, while the sum is 58.

The square root of 6940975693 is about 83312.5182250543. The cubic root of 6940975693 is about 1907.5393596828.

The spelling of 6940975693 in words is "six billion, nine hundred forty million, nine hundred seventy-five thousand, six hundred ninety-three".