25830487065947 has 2 divisors, whose sum is σ = 25830487065948. Its totient is φ = 25830487065946.

The previous prime is 25830487065899. The next prime is 25830487065949. The reversal of 25830487065947 is 74956078403852.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-25830487065947 is a prime.

Together with 25830487065949, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (25830487065949) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12915243532973 + 12915243532974.

It is an arithmetic number, because the mean of its divisors is an integer number (12915243532974).

Almost surely, 2^{25830487065947} is an apocalyptic number.

25830487065947 is a deficient number, since it is larger than the sum of its proper divisors (1).

25830487065947 is an equidigital number, since it uses as much as digits as its factorization.

25830487065947 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 406425600, while the sum is 68.

The spelling of 25830487065947 in words is "twenty-five trillion, eight hundred thirty billion, four hundred eighty-seven million, sixty-five thousand, nine hundred forty-seven".