622794556779 has 4 divisors (see below), whose sum is σ = 830392742376. Its totient is φ = 415196371184.

The previous prime is 622794556763. The next prime is 622794556801. The reversal of 622794556779 is 977655497226.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 622794556779 - 2⁴ = 622794556763 is a prime.

It is not an unprimeable number, because it can be changed into a prime (622794554779) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 103799092794 + ... + 103799092799.

It is an arithmetic number, because the mean of its divisors is an integer number (207598185594).

Almost surely, 2^622794556779 is an apocalyptic number.

622794556779 is a deficient number, since it is larger than the sum of its proper divisors (207598185597).

622794556779 is a wasteful number, since it uses less digits than its factorization.

622794556779 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 207598185596.

The product of its digits is 400075200, while the sum is 69.

The spelling of 622794556779 in words is "six hundred twenty-two billion, seven hundred ninety-four million, five hundred fifty-six thousand, seven hundred seventy-nine".