74020381191 has 24 divisors (see below), whose sum is σ = 112486277904. Its totient is φ = 46842157440.

The previous prime is 74020381181. The next prime is 74020381213. The reversal of 74020381191 is 19118302047.

It is a happy number.

74020381191 is a `hidden beast` number, since 74 + 0 + 20 + 381 + 191 = 666.

It is not a de Polignac number, because 74020381191 - 2¹⁰ = 74020380167 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74020381121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2697121 + ... + 2724426.

It is an arithmetic number, because the mean of its divisors is an integer number (4686928246).

Almost surely, 2^74020381191 is an apocalyptic number.

74020381191 is a deficient number, since it is larger than the sum of its proper divisors (38465896713).

74020381191 is a wasteful number, since it uses less digits than its factorization.

74020381191 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5421631 (or 5421628 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 36.

The spelling of 74020381191 in words is "seventy-four billion, twenty million, three hundred eighty-one thousand, one hundred ninety-one".