254822321618 has 6 divisors (see below), whose sum is σ = 382234553271. Its totient is φ = 127410803862.

The previous prime is 254822321597. The next prime is 254822321647. The reversal of 254822321618 is 816123228452.

It can be written as a sum of positive squares in only one way, i.e., 127411160809 + 127411160809 = 356947^2 + 356947^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=356947.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 535421 + ... + 892367.

Almost surely, 2^254822321618 is an apocalyptic number.

254822321618 is a deficient number, since it is larger than the sum of its proper divisors (127412231653).

254822321618 is an frugal number, since it uses more digits than its factorization.

254822321618 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 713896 (or 356949 counting only the distinct ones).

The product of its digits is 368640, while the sum is 44.

The spelling of 254822321618 in words is "two hundred fifty-four billion, eight hundred twenty-two million, three hundred twenty-one thousand, six hundred eighteen".