78790969267 has 2 divisors, whose sum is σ = 78790969268. Its totient is φ = 78790969266.

The previous prime is 78790969241. The next prime is 78790969297. The reversal of 78790969267 is 76296909787.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-78790969267 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 78790969196 and 78790969205.

It is not a weakly prime, because it can be changed into another prime (78790969297) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39395484633 + 39395484634.

It is an arithmetic number, because the mean of its divisors is an integer number (39395484634).

Almost surely, 2^78790969267 is an apocalyptic number.

78790969267 is a deficient number, since it is larger than the sum of its proper divisors (1).

78790969267 is an equidigital number, since it uses as much as digits as its factorization.

78790969267 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 144027072, while the sum is 70.

The spelling of 78790969267 in words is "seventy-eight billion, seven hundred ninety million, nine hundred sixty-nine thousand, two hundred sixty-seven".