70388027869 has 2 divisors, whose sum is σ = 70388027870. Its totient is φ = 70388027868.

The previous prime is 70388027819. The next prime is 70388027873. The reversal of 70388027869 is 96872088307.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 69743528100 + 644499769 = 264090^2 + 25387^2 .

It is an emirp because it is prime and its reverse (96872088307) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-70388027869 is a prime.

It is a super-2 number, since 2×70388027869² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (70388027819) 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, 35194013934 + 35194013935.

It is an arithmetic number, because the mean of its divisors is an integer number (35194013935).

Almost surely, 2^70388027869 is an apocalyptic number.

It is an amenable number.

70388027869 is a deficient number, since it is larger than the sum of its proper divisors (1).

70388027869 is an equidigital number, since it uses as much as digits as its factorization.

70388027869 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8128512, while the sum is 58.

The spelling of 70388027869 in words is "seventy billion, three hundred eighty-eight million, twenty-seven thousand, eight hundred sixty-nine".