78027067213 has 2 divisors, whose sum is σ = 78027067214. Its totient is φ = 78027067212.

The previous prime is 78027067133. The next prime is 78027067267. The reversal of 78027067213 is 31276072087.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 40869878569 + 37157188644 = 202163^2 + 192762^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-78027067213 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 78027067213.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (78027061213) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39013533606 + 39013533607.

It is an arithmetic number, because the mean of its divisors is an integer number (39013533607).

Almost surely, 2^78027067213 is an apocalyptic number.

It is an amenable number.

78027067213 is a deficient number, since it is larger than the sum of its proper divisors (1).

78027067213 is an equidigital number, since it uses as much as digits as its factorization.

78027067213 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 197568, while the sum is 43.

The spelling of 78027067213 in words is "seventy-eight billion, twenty-seven million, sixty-seven thousand, two hundred thirteen".