45613744731649 has 2 divisors, whose sum is σ = 45613744731650. Its totient is φ = 45613744731648.

The previous prime is 45613744731509. The next prime is 45613744731673. The reversal of 45613744731649 is 94613744731654.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 25318206158400 + 20295538573249 = 5031720^2 + 4505057^2 .

It is a cyclic number.

It is not a de Polignac number, because 45613744731649 - 2¹¹ = 45613744729601 is a prime.

It is a super-2 number, since 2×45613744731649² (a number of 28 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (45613744731349) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22806872365824 + 22806872365825.

It is an arithmetic number, because the mean of its divisors is an integer number (22806872365825).

Almost surely, 2^{45613744731649} is an apocalyptic number.

It is an amenable number.

45613744731649 is a deficient number, since it is larger than the sum of its proper divisors (1).

45613744731649 is an equidigital number, since it uses as much as digits as its factorization.

45613744731649 is an evil number, because the sum of its binary digits is even.

The product of its digits is 182891520, while the sum is 64.

The spelling of 45613744731649 in words is "forty-five trillion, six hundred thirteen billion, seven hundred forty-four million, seven hundred thirty-one thousand, six hundred forty-nine".