45569972549 has 2 divisors, whose sum is σ = 45569972550. Its totient is φ = 45569972548.

The previous prime is 45569972389. The next prime is 45569972579. The reversal of 45569972549 is 94527996554.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 33333630625 + 12236341924 = 182575^2 + 110618^2 .

It is a cyclic number.

It is not a de Polignac number, because 45569972549 - 2²⁴ = 45553195333 is a prime.

It is a super-2 number, since 2×45569972549² (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 (45569972579) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22784986274 + 22784986275.

It is an arithmetic number, because the mean of its divisors is an integer number (22784986275).

Almost surely, 2^45569972549 is an apocalyptic number.

It is an amenable number.

45569972549 is a deficient number, since it is larger than the sum of its proper divisors (1).

45569972549 is an equidigital number, since it uses as much as digits as its factorization.

45569972549 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 122472000, while the sum is 65.

The spelling of 45569972549 in words is "forty-five billion, five hundred sixty-nine million, nine hundred seventy-two thousand, five hundred forty-nine".