78842330627 has 2 divisors, whose sum is σ = 78842330628. Its totient is φ = 78842330626.

The previous prime is 78842330617. The next prime is 78842330629. The reversal of 78842330627 is 72603324887.

It is a strong prime.

It is an emirp because it is prime and its reverse (72603324887) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 78842330627 - 2¹² = 78842326531 is a prime.

It is a super-2 number, since 2×78842330627² (a number of 23 digits) contains 22 as substring.

Together with 78842330629, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (78842330629) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39421165313 + 39421165314.

It is an arithmetic number, because the mean of its divisors is an integer number (39421165314).

Almost surely, 2^78842330627 is an apocalyptic number.

78842330627 is a deficient number, since it is larger than the sum of its proper divisors (1).

78842330627 is an equidigital number, since it uses as much as digits as its factorization.

78842330627 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2709504, while the sum is 50.

The spelling of 78842330627 in words is "seventy-eight billion, eight hundred forty-two million, three hundred thirty thousand, six hundred twenty-seven".