621423621042162 has 16 divisors (see below), whose sum is σ = 1242852911718240. Its totient is φ = 207140262075072.

The previous prime is 621423621042047. The next prime is 621423621042193. The reversal of 621423621042162 is 261240126324126.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 234809212 + ... + 237440967.

It is an arithmetic number, because the mean of its divisors is an integer number (77678306982390).

Almost surely, 2^{621423621042162} is an apocalyptic number.

621423621042162 is an abundant number, since it is smaller than the sum of its proper divisors (621429290676078).

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

621423621042162 is a wasteful number, since it uses less digits than its factorization.

621423621042162 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 472469497.

The product of its (nonzero) digits is 331776, while the sum is 42.

Adding to 621423621042162 its reverse (261240126324126), we get a palindrome (882663747366288).

The spelling of 621423621042162 in words is "six hundred twenty-one trillion, four hundred twenty-three billion, six hundred twenty-one million, forty-two thousand, one hundred sixty-two".