642441533462 has 8 divisors (see below), whose sum is σ = 973203511392. Its totient is φ = 318040363000.

The previous prime is 642441533443. The next prime is 642441533477. The reversal of 642441533462 is 264335144246.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×642441533462² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1590201614 + ... + 1590202017.

It is an arithmetic number, because the mean of its divisors is an integer number (121650438924).

Almost surely, 2^642441533462 is an apocalyptic number.

642441533462 is a deficient number, since it is larger than the sum of its proper divisors (330761977930).

642441533462 is a wasteful number, since it uses less digits than its factorization.

642441533462 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3180403734.

The product of its digits is 1658880, while the sum is 44.

The spelling of 642441533462 in words is "six hundred forty-two billion, four hundred forty-one million, five hundred thirty-three thousand, four hundred sixty-two".