622154425442 has 32 divisors (see below), whose sum is σ = 1019883032064. Its totient is φ = 282294460800.

The previous prime is 622154425439. The next prime is 622154425489. The reversal of 622154425442 is 244524451226.

It is a happy number.

It is a super-2 number, since 2×622154425442² (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 622154425442.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 40415567 + ... + 40430957.

It is an arithmetic number, because the mean of its divisors is an integer number (31871344752).

Almost surely, 2^622154425442 is an apocalyptic number.

622154425442 is a deficient number, since it is larger than the sum of its proper divisors (397728606622).

622154425442 is a wasteful number, since it uses less digits than its factorization.

622154425442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18554.

The product of its digits is 614400, while the sum is 41.

Adding to 622154425442 its reverse (244524451226), we get a palindrome (866678876668).

The spelling of 622154425442 in words is "six hundred twenty-two billion, one hundred fifty-four million, four hundred twenty-five thousand, four hundred forty-two".