8642219764442 has 8 divisors (see below), whose sum is σ = 14141814160032. Its totient is φ = 3928281711100.

The previous prime is 8642219764427. The next prime is 8642219764511. The reversal of 8642219764442 is 2444679122468.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 196414085534 + ... + 196414085577.

It is an arithmetic number, because the mean of its divisors is an integer number (1767726770004).

Almost surely, 2^{8642219764442} is an apocalyptic number.

8642219764442 is a deficient number, since it is larger than the sum of its proper divisors (5499594395590).

8642219764442 is a wasteful number, since it uses less digits than its factorization.

8642219764442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 392828171124.

The product of its digits is 37158912, while the sum is 59.

The spelling of 8642219764442 in words is "eight trillion, six hundred forty-two billion, two hundred nineteen million, seven hundred sixty-four thousand, four hundred forty-two".