42021140194 has 8 divisors (see below), whose sum is σ = 68761865808. Its totient is φ = 19100518260.

The previous prime is 42021140191. The next prime is 42021140201. The reversal of 42021140194 is 49104112024.

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

It is not an unprimeable number, because it can be changed into a prime (42021140191) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 955025892 + ... + 955025935.

It is an arithmetic number, because the mean of its divisors is an integer number (8595233226).

Almost surely, 2^42021140194 is an apocalyptic number.

42021140194 is a deficient number, since it is larger than the sum of its proper divisors (26740725614).

42021140194 is a wasteful number, since it uses less digits than its factorization.

42021140194 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1910051840.

The product of its (nonzero) digits is 2304, while the sum is 28.

The spelling of 42021140194 in words is "forty-two billion, twenty-one million, one hundred forty thousand, one hundred ninety-four".