254074873849 has 2 divisors, whose sum is σ = 254074873850. Its totient is φ = 254074873848.

The previous prime is 254074873847. The next prime is 254074873853. The reversal of 254074873849 is 948378470452.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 216440813824 + 37634060025 = 465232^2 + 193995^2 .

It is a cyclic number.

It is not a de Polignac number, because 254074873849 - 2¹ = 254074873847 is a prime.

Together with 254074873847, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (254074873847) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 127037436924 + 127037436925.

It is an arithmetic number, because the mean of its divisors is an integer number (127037436925).

Almost surely, 2^254074873849 is an apocalyptic number.

It is an amenable number.

254074873849 is a deficient number, since it is larger than the sum of its proper divisors (1).

254074873849 is an equidigital number, since it uses as much as digits as its factorization.

254074873849 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 54190080, while the sum is 61.

The spelling of 254074873849 in words is "two hundred fifty-four billion, seventy-four million, eight hundred seventy-three thousand, eight hundred forty-nine".