42779976713 has 2 divisors, whose sum is σ = 42779976714. Its totient is φ = 42779976712.

The previous prime is 42779976703. The next prime is 42779976721. The reversal of 42779976713 is 31767997724.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 28616120569 + 14163856144 = 169163^2 + 119012^2 .

It is a cyclic number.

It is not a de Polignac number, because 42779976713 - 2⁸ = 42779976457 is a prime.

It is a super-3 number, since 3×42779976713³ (a number of 33 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (42779976703) 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 as a sum of consecutive naturals, namely, 21389988356 + 21389988357.

It is an arithmetic number, because the mean of its divisors is an integer number (21389988357).

Almost surely, 2^42779976713 is an apocalyptic number.

It is an amenable number.

42779976713 is a deficient number, since it is larger than the sum of its proper divisors (1).

42779976713 is an equidigital number, since it uses as much as digits as its factorization.

42779976713 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 28005264, while the sum is 62.

The spelling of 42779976713 in words is "forty-two billion, seven hundred seventy-nine million, nine hundred seventy-six thousand, seven hundred thirteen".