74404040447 has 16 divisors (see below), whose sum is σ = 83821630464. Its totient is φ = 65430552000.

The previous prime is 74404040419. The next prime is 74404040467.

74404040447 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 74404040447 - 2¹² = 74404036351 is a prime.

It is a super-2 number, since 2×74404040447² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 74404040447.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74404040467) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 787688 + ... + 877074.

It is an arithmetic number, because the mean of its divisors is an integer number (5238851904).

Almost surely, 2^74404040447 is an apocalyptic number.

74404040447 is a deficient number, since it is larger than the sum of its proper divisors (9417590017).

74404040447 is a wasteful number, since it uses less digits than its factorization.

74404040447 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91870.

The product of its (nonzero) digits is 200704, while the sum is 38.

It can be divided in two parts, 744040 and 40447, that added together give a palindrome (784487).

The spelling of 74404040447 in words is "seventy-four billion, four hundred four million, forty thousand, four hundred forty-seven".