74440555504447 has 16 divisors (see below), whose sum is σ = 82097660885760. Its totient is φ = 66933371448000.

The previous prime is 74440555504433. The next prime is 74440555504451.

74440555504447 is nontrivially palindromic in base 10.

It is a cyclic number.

It is not a de Polignac number, because 74440555504447 - 2⁷ = 74440555504319 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 74440555504391 and 74440555504400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74440555507447) 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, 39690429 + ... + 41523622.

It is an arithmetic number, because the mean of its divisors is an integer number (5131103805360).

Almost surely, 2^{74440555504447} is an apocalyptic number.

74440555504447 is a deficient number, since it is larger than the sum of its proper divisors (7657105381313).

74440555504447 is a wasteful number, since it uses less digits than its factorization.

74440555504447 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81214974.

The product of its (nonzero) digits is 125440000, while the sum is 58.

The spelling of 74440555504447 in words is "seventy-four trillion, four hundred forty billion, five hundred fifty-five million, five hundred four thousand, four hundred forty-seven".