45204044549 has 2 divisors, whose sum is σ = 45204044550. Its totient is φ = 45204044548.

The previous prime is 45204044527. The next prime is 45204044563. The reversal of 45204044549 is 94544040254.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 24606628225 + 20597416324 = 156865^2 + 143518^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-45204044549 is a prime.

It is a super-2 number, since 2×45204044549² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (45204044519) 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, 22602022274 + 22602022275.

It is an arithmetic number, because the mean of its divisors is an integer number (22602022275).

Almost surely, 2^45204044549 is an apocalyptic number.

It is an amenable number.

45204044549 is a deficient number, since it is larger than the sum of its proper divisors (1).

45204044549 is an equidigital number, since it uses as much as digits as its factorization.

45204044549 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 460800, while the sum is 41.

The spelling of 45204044549 in words is "forty-five billion, two hundred four million, forty-four thousand, five hundred forty-nine".