74456065447 has 4 divisors (see below), whose sum is σ = 74498395840. Its totient is φ = 74413735056.

The previous prime is 74456065429. The next prime is 74456065493.

74456065447 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 74456065447 - 2³⁵ = 40096327079 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 74456065394 and 74456065403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74456065417) 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, 21162558 + ... + 21166075.

It is an arithmetic number, because the mean of its divisors is an integer number (18624598960).

Almost surely, 2^74456065447 is an apocalyptic number.

74456065447 is a deficient number, since it is larger than the sum of its proper divisors (42330393).

74456065447 is a wasteful number, since it uses less digits than its factorization.

74456065447 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42330392.

The product of its (nonzero) digits is 11289600, while the sum is 52.

The spelling of 74456065447 in words is "seventy-four billion, four hundred fifty-six million, sixty-five thousand, four hundred forty-seven".