74458885447 has 4 divisors (see below), whose sum is σ = 74459681856. Its totient is φ = 74458089040.

The previous prime is 74458885427. The next prime is 74458885451.

It is a happy number.

74458885447 is nontrivially palindromic in base 10.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 74458885447 - 2¹⁵ = 74458852679 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74458885427) 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, 235918 + ... + 452299.

It is an arithmetic number, because the mean of its divisors is an integer number (18614920464).

Almost surely, 2^74458885447 is an apocalyptic number.

74458885447 is a deficient number, since it is larger than the sum of its proper divisors (796409).

74458885447 is a wasteful number, since it uses less digits than its factorization.

74458885447 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 796408.

The product of its digits is 160563200, while the sum is 64.

The spelling of 74458885447 in words is "seventy-four billion, four hundred fifty-eight million, eight hundred eighty-five thousand, four hundred forty-seven".