74070844186 has 4 divisors (see below), whose sum is σ = 111106266282. Its totient is φ = 37035422092.

The previous prime is 74070844181. The next prime is 74070844193. The reversal of 74070844186 is 68144807047.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 68144807047 = 607 ⋅112264921.

It can be written as a sum of positive squares in only one way, i.e., 74055281161 + 15563025 = 272131^2 + 3945^2 .

It is not an unprimeable number, because it can be changed into a prime (74070844181) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18517711045 + ... + 18517711048.

Almost surely, 2^74070844186 is an apocalyptic number.

74070844186 is a deficient number, since it is larger than the sum of its proper divisors (37035422096).

74070844186 is a wasteful number, since it uses less digits than its factorization.

74070844186 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37035422095.

The product of its (nonzero) digits is 1204224, while the sum is 49.

The spelling of 74070844186 in words is "seventy-four billion, seventy million, eight hundred forty-four thousand, one hundred eighty-six".