254640846947 has 2 divisors, whose sum is σ = 254640846948. Its totient is φ = 254640846946.

The previous prime is 254640846919. The next prime is 254640846959. The reversal of 254640846947 is 749648046452.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 254640846947 - 2¹⁰ = 254640845923 is a prime.

It is not a weakly prime, because it can be changed into another prime (254640846907) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 127320423473 + 127320423474.

It is an arithmetic number, because the mean of its divisors is an integer number (127320423474).

Almost surely, 2^254640846947 is an apocalyptic number.

254640846947 is a deficient number, since it is larger than the sum of its proper divisors (1).

254640846947 is an equidigital number, since it uses as much as digits as its factorization.

254640846947 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 46448640, while the sum is 59.

The spelling of 254640846947 in words is "two hundred fifty-four billion, six hundred forty million, eight hundred forty-six thousand, nine hundred forty-seven".