642112211246 has 128 divisors (see below), whose sum is σ = 1112156559360. Its totient is φ = 275498496000.

The previous prime is 642112211233. The next prime is 642112211261.

642112211246 is nontrivially palindromic in base 10.

It is a congruent 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 63 ways as a sum of consecutive naturals, for example, 732168560 + ... + 732169436.

It is an arithmetic number, because the mean of its divisors is an integer number (8688723120).

Almost surely, 2^642112211246 is an apocalyptic number.

642112211246 is a deficient number, since it is larger than the sum of its proper divisors (470044348114).

642112211246 is a wasteful number, since it uses less digits than its factorization.

642112211246 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1210.

The product of its digits is 9216, while the sum is 32.

It can be divided in two parts, 642112 and 211246, that added together give a palindrome (853358).

The spelling of 642112211246 in words is "six hundred forty-two billion, one hundred twelve million, two hundred eleven thousand, two hundred forty-six".