74985928322 has 18 divisors (see below), whose sum is σ = 113109178473. Its totient is φ = 37284036312.

The previous prime is 74985928313. The next prime is 74985928327. The reversal of 74985928322 is 22382958947.

It can be written as a sum of positive squares in 2 ways, for example, as 54986029081 + 19999899241 = 234491^2 + 141421^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=193631.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (74985928327) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 87908048 + ... + 87908900.

Almost surely, 2^74985928322 is an apocalyptic number.

74985928322 is a deficient number, since it is larger than the sum of its proper divisors (38123250151).

74985928322 is an frugal number, since it uses more digits than its factorization.

74985928322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2162 (or 1082 counting only the distinct ones).

The product of its digits is 17418240, while the sum is 59.

The spelling of 74985928322 in words is "seventy-four billion, nine hundred eighty-five million, nine hundred twenty-eight thousand, three hundred twenty-two".