74191104409 has 4 divisors (see below), whose sum is σ = 74501527680. Its totient is φ = 73880681140.

The previous prime is 74191104307. The next prime is 74191104419. The reversal of 74191104409 is 90440119147.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 74191104409 - 2²¹ = 74189007257 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (74191104419) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 155211277 + ... + 155211754.

It is an arithmetic number, because the mean of its divisors is an integer number (18625381920).

Almost surely, 2^74191104409 is an apocalyptic number.

It is an amenable number.

74191104409 is a deficient number, since it is larger than the sum of its proper divisors (310423271).

74191104409 is a wasteful number, since it uses less digits than its factorization.

74191104409 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 310423270.

The product of its (nonzero) digits is 36288, while the sum is 40.

The spelling of 74191104409 in words is "seventy-four billion, one hundred ninety-one million, one hundred four thousand, four hundred nine".