74430203447 has 4 divisors (see below), whose sum is σ = 74875893456. Its totient is φ = 73984513440.

The previous prime is 74430203429. The next prime is 74430203473.

74430203447 is nontrivially palindromic in base 10.

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

It is a cyclic number.

It is not a de Polignac number, because 74430203447 - 2¹⁶ = 74430137911 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 74430203447.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74430203747) 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, 222844754 + ... + 222845087.

It is an arithmetic number, because the mean of its divisors is an integer number (18718973364).

Almost surely, 2^74430203447 is an apocalyptic number.

74430203447 is a deficient number, since it is larger than the sum of its proper divisors (445690009).

74430203447 is a wasteful number, since it uses less digits than its factorization.

74430203447 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 445690008.

The product of its (nonzero) digits is 225792, while the sum is 38.

The spelling of 74430203447 in words is "seventy-four billion, four hundred thirty million, two hundred three thousand, four hundred forty-seven".