254720380673 has 6 divisors (see below), whose sum is σ = 279981906162. Its totient is φ = 231563982320.

The previous prime is 254720380639. The next prime is 254720380741. The reversal of 254720380673 is 376083027452.

It can be written as a sum of positive squares in only one way, i.e., 165219486784 + 89500893889 = 406472^2 + 299167^2 .

It is not a de Polignac number, because 254720380673 - 2⁸ = 254720380417 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (254720380613) 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 5 ways as a sum of consecutive naturals, for example, 1052563436 + ... + 1052563677.

It is an arithmetic number, because the mean of its divisors is an integer number (46663651027).

Almost surely, 2^254720380673 is an apocalyptic number.

It is an amenable number.

254720380673 is a deficient number, since it is larger than the sum of its proper divisors (25261525489).

254720380673 is a wasteful number, since it uses less digits than its factorization.

254720380673 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2105127135 (or 2105127124 counting only the distinct ones).

The product of its (nonzero) digits is 1693440, while the sum is 47.

The spelling of 254720380673 in words is "two hundred fifty-four billion, seven hundred twenty million, three hundred eighty thousand, six hundred seventy-three".