254101063239979 has 2 divisors, whose sum is σ = 254101063239980. Its totient is φ = 254101063239978.

The previous prime is 254101063239967. The next prime is 254101063240067. The reversal of 254101063239979 is 979932360101452.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-254101063239979 is a prime.

It is not a weakly prime, because it can be changed into another prime (254101063269979) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 127050531619989 + 127050531619990.

It is an arithmetic number, because the mean of its divisors is an integer number (127050531619990).

Almost surely, 2^{254101063239979} is an apocalyptic number.

254101063239979 is a deficient number, since it is larger than the sum of its proper divisors (1).

254101063239979 is an equidigital number, since it uses as much as digits as its factorization.

254101063239979 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 22044960, while the sum is 61.

The spelling of 254101063239979 in words is "two hundred fifty-four trillion, one hundred one billion, sixty-three million, two hundred thirty-nine thousand, nine hundred seventy-nine".