74424466442447 has 4 divisors (see below), whose sum is σ = 81190327028136. Its totient is φ = 67658605856760.

The previous prime is 74424466442429. The next prime is 74424466442497.

74424466442447 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 74424466442447 - 2¹² = 74424466438351 is a prime.

It is a super-2 number, since 2×74424466442447² (a number of 29 digits) contains 22 as substring.

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 74424466442447.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74424466442497) 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, 3382930292828 + ... + 3382930292849.

It is an arithmetic number, because the mean of its divisors is an integer number (20297581757034).

Almost surely, 2^{74424466442447} is an apocalyptic number.

74424466442447 is a deficient number, since it is larger than the sum of its proper divisors (6765860585689).

74424466442447 is a wasteful number, since it uses less digits than its factorization.

74424466442447 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6765860585688.

The product of its digits is 462422016, while the sum is 62.

The spelling of 74424466442447 in words is "seventy-four trillion, four hundred twenty-four billion, four hundred sixty-six million, four hundred forty-two thousand, four hundred forty-seven".