45549894617 has 2 divisors, whose sum is σ = 45549894618. Its totient is φ = 45549894616.

The previous prime is 45549894541. The next prime is 45549894619. The reversal of 45549894617 is 71649894554.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 45345147136 + 204747481 = 212944^2 + 14309^2 .

It is a cyclic number.

It is not a de Polignac number, because 45549894617 - 2¹⁴ = 45549878233 is a prime.

Together with 45549894619, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 45549894617.

It is not a weakly prime, because it can be changed into another prime (45549894619) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22774947308 + 22774947309.

It is an arithmetic number, because the mean of its divisors is an integer number (22774947309).

Almost surely, 2^45549894617 is an apocalyptic number.

It is an amenable number.

45549894617 is a deficient number, since it is larger than the sum of its proper divisors (1).

45549894617 is an equidigital number, since it uses as much as digits as its factorization.

45549894617 is an evil number, because the sum of its binary digits is even.

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

The spelling of 45549894617 in words is "forty-five billion, five hundred forty-nine million, eight hundred ninety-four thousand, six hundred seventeen".