45144646193 has 2 divisors, whose sum is σ = 45144646194. Its totient is φ = 45144646192.

The previous prime is 45144646139. The next prime is 45144646223. The reversal of 45144646193 is 39164644154.

Together with previous prime (45144646139) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 30208873249 + 14935772944 = 173807^2 + 122212^2 .

It is a cyclic number.

It is not a de Polignac number, because 45144646193 - 2¹⁴ = 45144629809 is a prime.

It is a super-2 number, since 2×45144646193² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (45144645193) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22572323096 + 22572323097.

It is an arithmetic number, because the mean of its divisors is an integer number (22572323097).

Almost surely, 2^45144646193 is an apocalyptic number.

It is an amenable number.

45144646193 is a deficient number, since it is larger than the sum of its proper divisors (1).

45144646193 is an equidigital number, since it uses as much as digits as its factorization.

45144646193 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1244160, while the sum is 47.

The spelling of 45144646193 in words is "forty-five billion, one hundred forty-four million, six hundred forty-six thousand, one hundred ninety-three".