789378494251 has 2 divisors, whose sum is σ = 789378494252. Its totient is φ = 789378494250.

The previous prime is 789378494171. The next prime is 789378494293. The reversal of 789378494251 is 152494873987.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 789378494251 - 2²⁵ = 789344939819 is a prime.

It is not a weakly prime, because it can be changed into another prime (789378494651) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 394689247125 + 394689247126.

It is an arithmetic number, because the mean of its divisors is an integer number (394689247126).

Almost surely, 2^789378494251 is an apocalyptic number.

789378494251 is a deficient number, since it is larger than the sum of its proper divisors (1).

789378494251 is an equidigital number, since it uses as much as digits as its factorization.

789378494251 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 121927680, while the sum is 67.

The spelling of 789378494251 in words is "seven hundred eighty-nine billion, three hundred seventy-eight million, four hundred ninety-four thousand, two hundred fifty-one".