71297845219 has 2 divisors, whose sum is σ = 71297845220. Its totient is φ = 71297845218.

The previous prime is 71297845187. The next prime is 71297845231. The reversal of 71297845219 is 91254879217.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 71297845219 - 2⁵ = 71297845187 is a prime.

It is a super-2 number, since 2×71297845219² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 71297845219.

It is not a weakly prime, because it can be changed into another prime (71297845319) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35648922609 + 35648922610.

It is an arithmetic number, because the mean of its divisors is an integer number (35648922610).

Almost surely, 2^71297845219 is an apocalyptic number.

71297845219 is a deficient number, since it is larger than the sum of its proper divisors (1).

71297845219 is an equidigital number, since it uses as much as digits as its factorization.

71297845219 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2540160, while the sum is 55.

The spelling of 71297845219 in words is "seventy-one billion, two hundred ninety-seven million, eight hundred forty-five thousand, two hundred nineteen".