45549130817 has 2 divisors, whose sum is σ = 45549130818. Its totient is φ = 45549130816.

The previous prime is 45549130801. The next prime is 45549130841. The reversal of 45549130817 is 71803194554.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 44232819856 + 1316310961 = 210316^2 + 36281^2 .

It is a cyclic number.

It is not a de Polignac number, because 45549130817 - 2⁴ = 45549130801 is a prime.

It is not a weakly prime, because it can be changed into another prime (45549030817) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22774565408 + 22774565409.

It is an arithmetic number, because the mean of its divisors is an integer number (22774565409).

Almost surely, 2^45549130817 is an apocalyptic number.

It is an amenable number.

45549130817 is a deficient number, since it is larger than the sum of its proper divisors (1).

45549130817 is an equidigital number, since it uses as much as digits as its factorization.

45549130817 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 604800, while the sum is 47.

The spelling of 45549130817 in words is "forty-five billion, five hundred forty-nine million, one hundred thirty thousand, eight hundred seventeen".