74223421472 has 54 divisors (see below), whose sum is σ = 155283531543. Its totient is φ = 34916339712.

The previous prime is 74223421471. The next prime is 74223421477. The reversal of 74223421472 is 27412432247.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It can be written as a sum of positive squares in 5 ways, for example, as 50680815376 + 23542606096 = 225124^2 + 153436^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=192644.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (74223421471) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 26198168 + ... + 26201000.

Almost surely, 2^74223421472 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 74223421472

74223421472 is an abundant number, since it is smaller than the sum of its proper divisors (81060110071).

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

74223421472 is an frugal number, since it uses more digits than its factorization.

74223421472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5710 (or 2852 counting only the distinct ones).

The product of its digits is 150528, while the sum is 38.

The spelling of 74223421472 in words is "seventy-four billion, two hundred twenty-three million, four hundred twenty-one thousand, four hundred seventy-two".