642332233246 has 64 divisors (see below), whose sum is σ = 1103340994560. Its totient is φ = 277610271840.

The previous prime is 642332233159. The next prime is 642332233373.

642332233246 is nontrivially palindromic in base 10.

It is a junction number, because it is equal to n+sod(n) for n = 642332233199 and 642332233208.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 83383431 + ... + 83391133.

It is an arithmetic number, because the mean of its divisors is an integer number (17239703040).

Almost surely, 2^642332233246 is an apocalyptic number.

642332233246 is a deficient number, since it is larger than the sum of its proper divisors (461008761314).

642332233246 is a wasteful number, since it uses less digits than its factorization.

642332233246 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8701.

The product of its digits is 746496, while the sum is 40.

It can be divided in two parts, 642332 and 233246, that added together give a palindrome (875578).

The spelling of 642332233246 in words is "six hundred forty-two billion, three hundred thirty-two million, two hundred thirty-three thousand, two hundred forty-six".