6942551617 has 2 divisors, whose sum is σ = 6942551618. Its totient is φ = 6942551616.

The previous prime is 6942551563. The next prime is 6942551639. The reversal of 6942551617 is 7161552496.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3647676816 + 3294874801 = 60396^2 + 57401^2 .

It is a cyclic number.

It is not a de Polignac number, because 6942551617 - 2⁷ = 6942551489 is a prime.

It is not a weakly prime, because it can be changed into another prime (6942551717) 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, 3471275808 + 3471275809.

It is an arithmetic number, because the mean of its divisors is an integer number (3471275809).

Almost surely, 2^6942551617 is an apocalyptic number.

It is an amenable number.

6942551617 is a deficient number, since it is larger than the sum of its proper divisors (1).

6942551617 is an equidigital number, since it uses as much as digits as its factorization.

6942551617 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 453600, while the sum is 46.

The square root of 6942551617 is about 83321.9755946773. The cubic root of 6942551617 is about 1907.6837154482.

The spelling of 6942551617 in words is "six billion, nine hundred forty-two million, five hundred fifty-one thousand, six hundred seventeen".