74165262889 has 3 divisors (see below), whose sum is σ = 74165535223. Its totient is φ = 74164990556.

The previous prime is 74165262887. The next prime is 74165262923. The reversal of 74165262889 is 98826256147.

The square root of 74165262889 is 272333.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in only one way, i.e., 7028307225 + 67136955664 = 83835^2 + 259108^2 .

It is not a de Polignac number, because 74165262889 - 2¹ = 74165262887 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (74165262887) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 136167 + ... + 408499.

Almost surely, 2^74165262889 is an apocalyptic number.

74165262889 is the 272333-rd square number.

74165262889 is the 136167-th centered octagonal number.

It is an amenable number.

74165262889 is a deficient number, since it is larger than the sum of its proper divisors (272334).

74165262889 is an frugal number, since it uses more digits than its factorization.

74165262889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 544666 (or 272333 counting only the distinct ones).

The product of its digits is 11612160, while the sum is 58.

The spelling of 74165262889 in words is "seventy-four billion, one hundred sixty-five million, two hundred sixty-two thousand, eight hundred eighty-nine".