842621190947 has 8 divisors (see below), whose sum is σ = 844460533680. Its totient is φ = 840782570400.

The previous prime is 842621190941. The next prime is 842621190991. The reversal of 842621190947 is 749091126248.

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

It is a cyclic number.

It is not a de Polignac number, because 842621190947 - 2¹² = 842621186851 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (842621190941) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2189393 + ... + 2545325.

It is an arithmetic number, because the mean of its divisors is an integer number (105557566710).

Almost surely, 2^842621190947 is an apocalyptic number.

842621190947 is a deficient number, since it is larger than the sum of its proper divisors (1839342733).

842621190947 is a wasteful number, since it uses less digits than its factorization.

842621190947 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 361093.

The product of its (nonzero) digits is 1741824, while the sum is 53.

It can be divided in two parts, 8426211 and 90947, that added together give a palindrome (8517158).

The spelling of 842621190947 in words is "eight hundred forty-two billion, six hundred twenty-one million, one hundred ninety thousand, nine hundred forty-seven".