78967964293633 has 2 divisors, whose sum is σ = 78967964293634. Its totient is φ = 78967964293632.

The previous prime is 78967964293613. The next prime is 78967964293637. The reversal of 78967964293633 is 33639246976987.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 76088077231104 + 2879887062529 = 8722848^2 + 1697023^2 .

It is a cyclic number.

It is not a de Polignac number, because 78967964293633 - 2²⁹ = 78967427422721 is a prime.

It is not a weakly prime, because it can be changed into another prime (78967964293637) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39483982146816 + 39483982146817.

It is an arithmetic number, because the mean of its divisors is an integer number (39483982146817).

Almost surely, 2^{78967964293633} is an apocalyptic number.

It is an amenable number.

78967964293633 is a deficient number, since it is larger than the sum of its proper divisors (1).

78967964293633 is an equidigital number, since it uses as much as digits as its factorization.

78967964293633 is an evil number, because the sum of its binary digits is even.

The product of its digits is 13332791808, while the sum is 82.

The spelling of 78967964293633 in words is "seventy-eight trillion, nine hundred sixty-seven billion, nine hundred sixty-four million, two hundred ninety-three thousand, six hundred thirty-three".