622815051042 has 18 divisors (see below), whose sum is σ = 1349439865137. Its totient is φ = 207603900936.

The previous prime is 622815051011. The next prime is 622815051043. The reversal of 622815051042 is 240150518226.

622815051042 is a `hidden beast` number, since 6 + 22 + 81 + 5 + 0 + 510 + 42 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 525652550361 + 97162500681 = 725019^2 + 311709^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=558039.

It is a junction number, because it is equal to n+sod(n) for n = 622815050988 and 622815051006.

It is not an unprimeable number, because it can be changed into a prime (622815051043) 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 8 ways as a sum of consecutive naturals, for example, 3255228 + ... + 3441240.

Almost surely, 2^622815051042 is an apocalyptic number.

622815051042 is an abundant number, since it is smaller than the sum of its proper divisors (726624814095).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

622815051042 is an frugal number, since it uses more digits than its factorization.

622815051042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 372034 (or 186018 counting only the distinct ones).

The product of its (nonzero) digits is 38400, while the sum is 36.

Adding to 622815051042 its reverse (240150518226), we get a palindrome (862965569268).

The spelling of 622815051042 in words is "six hundred twenty-two billion, eight hundred fifteen million, fifty-one thousand, forty-two".