71570985037679 has 2 divisors, whose sum is σ = 71570985037680. Its totient is φ = 71570985037678.

The previous prime is 71570985037609. The next prime is 71570985037711. The reversal of 71570985037679 is 97673058907517.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 71570985037679 - 2²⁰ = 71570983989103 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (71570985037609) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35785492518839 + 35785492518840.

It is an arithmetic number, because the mean of its divisors is an integer number (35785492518840).

Almost surely, 2^{71570985037679} is an apocalyptic number.

71570985037679 is a deficient number, since it is larger than the sum of its proper divisors (1).

71570985037679 is an equidigital number, since it uses as much as digits as its factorization.

71570985037679 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 700131600, while the sum is 74.

The spelling of 71570985037679 in words is "seventy-one trillion, five hundred seventy billion, nine hundred eighty-five million, thirty-seven thousand, six hundred seventy-nine".