74189337149 has 4 divisors (see below), whose sum is σ = 74239163580. Its totient is φ = 74139510720.

The previous prime is 74189337139. The next prime is 74189337179. The reversal of 74189337149 is 94173398147.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 44907967225 + 29281369924 = 211915^2 + 171118^2 .

It is a cyclic number.

It is not a de Polignac number, because 74189337149 - 2⁴ = 74189337133 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 74189337094 and 74189337103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74189337109) 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 3 ways as a sum of consecutive naturals, for example, 24910982 + ... + 24913959.

It is an arithmetic number, because the mean of its divisors is an integer number (18559790895).

Almost surely, 2^74189337149 is an apocalyptic number.

It is an amenable number.

74189337149 is a deficient number, since it is larger than the sum of its proper divisors (49826431).

74189337149 is a wasteful number, since it uses less digits than its factorization.

74189337149 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49826430.

The product of its digits is 4572288, while the sum is 56.

The spelling of 74189337149 in words is "seventy-four billion, one hundred eighty-nine million, three hundred thirty-seven thousand, one hundred forty-nine".