45276437561 has 2 divisors, whose sum is σ = 45276437562. Its totient is φ = 45276437560.

The previous prime is 45276437551. The next prime is 45276437579. The reversal of 45276437561 is 16573467254.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 24883169536 + 20393268025 = 157744^2 + 142805^2 .

It is a cyclic number.

It is not a de Polignac number, because 45276437561 - 2³⁰ = 44202695737 is a prime.

It is not a weakly prime, because it can be changed into another prime (45276437551) 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, 22638218780 + 22638218781.

It is an arithmetic number, because the mean of its divisors is an integer number (22638218781).

Almost surely, 2^45276437561 is an apocalyptic number.

It is an amenable number.

45276437561 is a deficient number, since it is larger than the sum of its proper divisors (1).

45276437561 is an equidigital number, since it uses as much as digits as its factorization.

45276437561 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4233600, while the sum is 50.

The spelling of 45276437561 in words is "forty-five billion, two hundred seventy-six million, four hundred thirty-seven thousand, five hundred sixty-one".