78796766933 has 2 divisors, whose sum is σ = 78796766934. Its totient is φ = 78796766932.

The previous prime is 78796766927. The next prime is 78796766969. The reversal of 78796766933 is 33966769787.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 72233012644 + 6563754289 = 268762^2 + 81017^2 .

It is an emirp because it is prime and its reverse (33966769787) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 78796766933 - 2⁸ = 78796766677 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (78796763933) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39398383466 + 39398383467.

It is an arithmetic number, because the mean of its divisors is an integer number (39398383467).

Almost surely, 2^78796766933 is an apocalyptic number.

It is an amenable number.

78796766933 is a deficient number, since it is larger than the sum of its proper divisors (1).

78796766933 is an equidigital number, since it uses as much as digits as its factorization.

78796766933 is an evil number, because the sum of its binary digits is even.

The product of its digits is 432081216, while the sum is 71.

The spelling of 78796766933 in words is "seventy-eight billion, seven hundred ninety-six million, seven hundred sixty-six thousand, nine hundred thirty-three".