622637921642 has 16 divisors (see below), whose sum is σ = 1038085867872. Its totient is φ = 277677288720.

The previous prime is 622637921551. The next prime is 622637921713. The reversal of 622637921642 is 246129736226.

It is a happy number.

It is an unprimeable number.

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 in 7 ways as a sum of consecutive naturals, for example, 266996228 + ... + 266998559.

It is an arithmetic number, because the mean of its divisors is an integer number (64880366742).

Almost surely, 2^622637921642 is an apocalyptic number.

622637921642 is a deficient number, since it is larger than the sum of its proper divisors (415447946230).

622637921642 is a wasteful number, since it uses less digits than its factorization.

622637921642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 533994853.

The product of its digits is 2612736, while the sum is 50.

The spelling of 622637921642 in words is "six hundred twenty-two billion, six hundred thirty-seven million, nine hundred twenty-one thousand, six hundred forty-two".