774425838427 has 2 divisors, whose sum is σ = 774425838428. Its totient is φ = 774425838426.

The previous prime is 774425838371. The next prime is 774425838449. The reversal of 774425838427 is 724838524477.

It is a happy number.

It is a strong prime.

It is an emirp because it is prime and its reverse (724838524477) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 774425838427 - 2³⁹ = 224670024539 is a prime.

It is not a weakly prime, because it can be changed into another prime (774425838497) 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, 387212919213 + 387212919214.

It is an arithmetic number, because the mean of its divisors is an integer number (387212919214).

Almost surely, 2^774425838427 is an apocalyptic number.

774425838427 is a deficient number, since it is larger than the sum of its proper divisors (1).

774425838427 is an equidigital number, since it uses as much as digits as its factorization.

774425838427 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 84295680, while the sum is 61.

The spelling of 774425838427 in words is "seven hundred seventy-four billion, four hundred twenty-five million, eight hundred thirty-eight thousand, four hundred twenty-seven".