45456768193 has 2 divisors, whose sum is σ = 45456768194. Its totient is φ = 45456768192.

The previous prime is 45456768187. The next prime is 45456768251. The reversal of 45456768193 is 39186765454.

It is an a-pointer prime, because the next prime (45456768251) can be obtained adding 45456768193 to its sum of digits (58).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 31354493184 + 14102275009 = 177072^2 + 118753^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-45456768193 is a prime.

It is not a weakly prime, because it can be changed into another prime (45456768793) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22728384096 + 22728384097.

It is an arithmetic number, because the mean of its divisors is an integer number (22728384097).

Almost surely, 2^45456768193 is an apocalyptic number.

It is an amenable number.

45456768193 is a deficient number, since it is larger than the sum of its proper divisors (1).

45456768193 is an equidigital number, since it uses as much as digits as its factorization.

45456768193 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 21772800, while the sum is 58.

The spelling of 45456768193 in words is "forty-five billion, four hundred fifty-six million, seven hundred sixty-eight thousand, one hundred ninety-three".