1845185372963 has 2 divisors, whose sum is σ = 1845185372964. Its totient is φ = 1845185372962.

The previous prime is 1845185372957. The next prime is 1845185372971. The reversal of 1845185372963 is 3692735815481.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1845185372963 - 2¹² = 1845185368867 is a prime.

It is a super-2 number, since 2×1845185372963² (a number of 25 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a junction number, because it is equal to n+sod(n) for n = 1845185372896 and 1845185372905.

It is not a weakly prime, because it can be changed into another prime (1845185372363) 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, 922592686481 + 922592686482.

It is an arithmetic number, because the mean of its divisors is an integer number (922592686482).

Almost surely, 2^{1845185372963} is an apocalyptic number.

1845185372963 is a deficient number, since it is larger than the sum of its proper divisors (1).

1845185372963 is an equidigital number, since it uses as much as digits as its factorization.

1845185372963 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 43545600, while the sum is 62.

The spelling of 1845185372963 in words is "one trillion, eight hundred forty-five billion, one hundred eighty-five million, three hundred seventy-two thousand, nine hundred sixty-three".