622453663042 has 4 divisors (see below), whose sum is σ = 933680494566. Its totient is φ = 311226831520.

The previous prime is 622453663021. The next prime is 622453663049. The reversal of 622453663042 is 240366354226.

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

It can be written as a sum of positive squares in only one way, i.e., 414544110201 + 207909552841 = 643851^2 + 455971^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 622453663042.

It is not an unprimeable number, because it can be changed into a prime (622453663049) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 155613415759 + ... + 155613415762.

Almost surely, 2^622453663042 is an apocalyptic number.

622453663042 is a deficient number, since it is larger than the sum of its proper divisors (311226831524).

622453663042 is a wasteful number, since it uses less digits than its factorization.

622453663042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 311226831523.

The product of its (nonzero) digits is 1244160, while the sum is 43.

The spelling of 622453663042 in words is "six hundred twenty-two billion, four hundred fifty-three million, six hundred sixty-three thousand, forty-two".