254673457217 has 32 divisors (see below), whose sum is σ = 279852892704. Its totient is φ = 230798131200.

The previous prime is 254673457187. The next prime is 254673457219. The reversal of 254673457217 is 712754376452.

It can be written as a sum of positive squares in 16 ways, for example, as 127052325136 + 127621132081 = 356444^2 + 357241^2 .

It is a cyclic number.

It is not a de Polignac number, because 254673457217 - 2⁶ = 254673457153 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (254673457219) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 18974693 + ... + 18988109.

It is an arithmetic number, because the mean of its divisors is an integer number (8745402897).

Almost surely, 2^254673457217 is an apocalyptic number.

It is an amenable number.

254673457217 is a deficient number, since it is larger than the sum of its proper divisors (25179435487).

254673457217 is a wasteful number, since it uses less digits than its factorization.

254673457217 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13829.

The product of its digits is 9878400, while the sum is 53.

The spelling of 254673457217 in words is "two hundred fifty-four billion, six hundred seventy-three million, four hundred fifty-seven thousand, two hundred seventeen".