70517860319 has 2 divisors, whose sum is σ = 70517860320. Its totient is φ = 70517860318.

The previous prime is 70517860279. The next prime is 70517860339. The reversal of 70517860319 is 91306871507.

It is a strong prime.

It is an emirp because it is prime and its reverse (91306871507) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-70517860319 is a prime.

It is a super-2 number, since 2×70517860319² (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 (70517860339) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35258930159 + 35258930160.

It is an arithmetic number, because the mean of its divisors is an integer number (35258930160).

Almost surely, 2^70517860319 is an apocalyptic number.

70517860319 is a deficient number, since it is larger than the sum of its proper divisors (1).

70517860319 is an equidigital number, since it uses as much as digits as its factorization.

70517860319 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 317520, while the sum is 47.

The spelling of 70517860319 in words is "seventy billion, five hundred seventeen million, eight hundred sixty thousand, three hundred nineteen".