1845325325257 has 2 divisors, whose sum is σ = 1845325325258. Its totient is φ = 1845325325256.

The previous prime is 1845325325213. The next prime is 1845325325273. The reversal of 1845325325257 is 7525235235481.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1831539982336 + 13785342921 = 1353344^2 + 117411^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1845325325257 is a prime.

It is not a weakly prime, because it can be changed into another prime (1845325355257) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 922662662628 + 922662662629.

It is an arithmetic number, because the mean of its divisors is an integer number (922662662629).

Almost surely, 2^{1845325325257} is an apocalyptic number.

It is an amenable number.

1845325325257 is a deficient number, since it is larger than the sum of its proper divisors (1).

1845325325257 is an equidigital number, since it uses as much as digits as its factorization.

1845325325257 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10080000, while the sum is 52.

The spelling of 1845325325257 in words is "one trillion, eight hundred forty-five billion, three hundred twenty-five million, three hundred twenty-five thousand, two hundred fifty-seven".