74478340042 has 16 divisors (see below), whose sum is σ = 119786463360. Its totient is φ = 34604975808.

The previous prime is 74478340021. The next prime is 74478340049. The reversal of 74478340042 is 24004387447.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (74478340049) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 13861488 + ... + 13866859.

It is an arithmetic number, because the mean of its divisors is an integer number (7486653960).

Almost surely, 2^74478340042 is an apocalyptic number.

74478340042 is a deficient number, since it is larger than the sum of its proper divisors (45308123318).

74478340042 is a wasteful number, since it uses less digits than its factorization.

74478340042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27728445.

The product of its (nonzero) digits is 602112, while the sum is 43.

The spelling of 74478340042 in words is "seventy-four billion, four hundred seventy-eight million, three hundred forty thousand, forty-two".