254965549691 has 2 divisors, whose sum is σ = 254965549692. Its totient is φ = 254965549690.

The previous prime is 254965549667. The next prime is 254965549717. The reversal of 254965549691 is 196945569452.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 254965549691 - 2⁶ = 254965549627 is a prime.

It is not a weakly prime, because it can be changed into another prime (254965549661) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 127482774845 + 127482774846.

It is an arithmetic number, because the mean of its divisors is an integer number (127482774846).

Almost surely, 2^254965549691 is an apocalyptic number.

254965549691 is a deficient number, since it is larger than the sum of its proper divisors (1).

254965549691 is an equidigital number, since it uses as much as digits as its factorization.

254965549691 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 104976000, while the sum is 65.

The spelling of 254965549691 in words is "two hundred fifty-four billion, nine hundred sixty-five million, five hundred forty-nine thousand, six hundred ninety-one".