74233918145 has 16 divisors (see below), whose sum is σ = 90785966400. Its totient is φ = 58250896704.

The previous prime is 74233918141. The next prime is 74233918159. The reversal of 74233918145 is 54181933247.

It is a cyclic number.

It is not a de Polignac number, because 74233918145 - 2² = 74233918141 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 74233918145.

It is not an unprimeable number, because it can be changed into a prime (74233918141) 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 15 ways as a sum of consecutive naturals, for example, 999506 + ... + 1071204.

It is an arithmetic number, because the mean of its divisors is an integer number (5674122900).

Almost surely, 2^74233918145 is an apocalyptic number.

It is an amenable number.

74233918145 is a deficient number, since it is larger than the sum of its proper divisors (16552048255).

74233918145 is a wasteful number, since it uses less digits than its factorization.

74233918145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75664.

The product of its digits is 725760, while the sum is 47.

The spelling of 74233918145 in words is "seventy-four billion, two hundred thirty-three million, nine hundred eighteen thousand, one hundred forty-five".