1845438635057 has 2 divisors, whose sum is σ = 1845438635058. Its totient is φ = 1845438635056.

The previous prime is 1845438635017. The next prime is 1845438635099. The reversal of 1845438635057 is 7505368345481.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1404696669601 + 440741965456 = 1185199^2 + 663884^2 .

It is a cyclic number.

It is not a de Polignac number, because 1845438635057 - 2¹⁰ = 1845438634033 is a prime.

It is a super-2 number, since 2×1845438635057² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1845438634987 and 1845438635005.

It is not a weakly prime, because it can be changed into another prime (1845438635017) 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, 922719317528 + 922719317529.

It is an arithmetic number, because the mean of its divisors is an integer number (922719317529).

Almost surely, 2^{1845438635057} is an apocalyptic number.

It is an amenable number.

1845438635057 is a deficient number, since it is larger than the sum of its proper divisors (1).

1845438635057 is an equidigital number, since it uses as much as digits as its factorization.

1845438635057 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 48384000, while the sum is 59.

The spelling of 1845438635057 in words is "one trillion, eight hundred forty-five billion, four hundred thirty-eight million, six hundred thirty-five thousand, fifty-seven".