25670294138873 has 2 divisors, whose sum is σ = 25670294138874. Its totient is φ = 25670294138872.

The previous prime is 25670294138861. The next prime is 25670294138969. The reversal of 25670294138873 is 37883149207652.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 18534514559929 + 7135779578944 = 4305173^2 + 2671288^2 .

It is a cyclic number.

It is not a de Polignac number, because 25670294138873 - 2¹⁰ = 25670294137849 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (25670294108873) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12835147069436 + 12835147069437.

It is an arithmetic number, because the mean of its divisors is an integer number (12835147069437).

It is a 1-persistent number, because it is pandigital, but 2⋅25670294138873 = 51340588277746 is not.

Almost surely, 2^{25670294138873} is an apocalyptic number.

It is an amenable number.

25670294138873 is a deficient number, since it is larger than the sum of its proper divisors (1).

25670294138873 is an equidigital number, since it uses as much as digits as its factorization.

25670294138873 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 121927680, while the sum is 65.

The spelling of 25670294138873 in words is "twenty-five trillion, six hundred seventy billion, two hundred ninety-four million, one hundred thirty-eight thousand, eight hundred seventy-three".