78913605767 has 2 divisors, whose sum is σ = 78913605768. Its totient is φ = 78913605766.

The previous prime is 78913605761. The next prime is 78913605773. The reversal of 78913605767 is 76750631987.

It is a balanced prime because it is at equal distance from previous prime (78913605761) and next prime (78913605773).

It is an emirp because it is prime and its reverse (76750631987) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 78913605767 - 2¹² = 78913601671 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (78913605761) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39456802883 + 39456802884.

It is an arithmetic number, because the mean of its divisors is an integer number (39456802884).

Almost surely, 2^78913605767 is an apocalyptic number.

78913605767 is a deficient number, since it is larger than the sum of its proper divisors (1).

78913605767 is an equidigital number, since it uses as much as digits as its factorization.

78913605767 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 13335840, while the sum is 59.

The spelling of 78913605767 in words is "seventy-eight billion, nine hundred thirteen million, six hundred five thousand, seven hundred sixty-seven".