74538282289 has 9 divisors (see below), whose sum is σ = 77029052601. Its totient is φ = 72125631060.

The previous prime is 74538282283. The next prime is 74538282293. The reversal of 74538282289 is 98228283547.

The square root of 74538282289 is 273017.

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

It is not a de Polignac number, because 74538282289 - 2³ = 74538282281 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (74538282281) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 8459124 + ... + 8467930.

Almost surely, 2^74538282289 is an apocalyptic number.

74538282289 is the 273017-th square number.

74538282289 is the 136509-th centered octagonal number.

It is an amenable number.

74538282289 is a deficient number, since it is larger than the sum of its proper divisors (2490770312).

74538282289 is an frugal number, since it uses more digits than its factorization.

74538282289 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17676 (or 8838 counting only the distinct ones).

The product of its digits is 15482880, while the sum is 58.

The spelling of 74538282289 in words is "seventy-four billion, five hundred thirty-eight million, two hundred eighty-two thousand, two hundred eighty-nine".