74456865447 has 16 divisors (see below), whose sum is σ = 100749143040. Its totient is φ = 48905839872.

The previous prime is 74456865383. The next prime is 74456865449.

74456865447 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 74456865447 - 2⁶ = 74456865383 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74456865449) 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, 508797 + ... + 638582.

It is an arithmetic number, because the mean of its divisors is an integer number (6296821440).

Almost surely, 2^74456865447 is an apocalyptic number.

74456865447 is a deficient number, since it is larger than the sum of its proper divisors (26292277593).

74456865447 is a wasteful number, since it uses less digits than its factorization.

74456865447 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1147702.

The product of its digits is 90316800, while the sum is 60.

The spelling of 74456865447 in words is "seventy-four billion, four hundred fifty-six million, eight hundred sixty-five thousand, four hundred forty-seven".