42221643084 has 18 divisors (see below), whose sum is σ = 106726931220. Its totient is φ = 14073881016.

The previous prime is 42221643073. The next prime is 42221643131. The reversal of 42221643084 is 48034612224.

42221643084 is a `hidden beast` number, since 4 + 2 + 2 + 2 + 1 + 643 + 0 + 8 + 4 = 666.

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 1172823419 = 42221643084 / (4 + 2 + 2 + 2 + 1 + 6 + 4 + 3 + 0 + 8 + 4).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 586411674 + ... + 586411745.

Almost surely, 2^42221643084 is an apocalyptic number.

It is an amenable number.

42221643084 is an abundant number, since it is smaller than the sum of its proper divisors (64505288136).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

42221643084 is a wasteful number, since it uses less digits than its factorization.

42221643084 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1172823429 (or 1172823424 counting only the distinct ones).

The product of its (nonzero) digits is 73728, while the sum is 36.

The spelling of 42221643084 in words is "forty-two billion, two hundred twenty-one million, six hundred forty-three thousand, eighty-four".