45027872017 has 2 divisors, whose sum is σ = 45027872018. Its totient is φ = 45027872016.

The previous prime is 45027872009. The next prime is 45027872039. The reversal of 45027872017 is 71027872054.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 44821547521 + 206324496 = 211711^2 + 14364^2 .

It is a cyclic number.

It is not a de Polignac number, because 45027872017 - 2³ = 45027872009 is a prime.

It is not a weakly prime, because it can be changed into another prime (45027878017) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22513936008 + 22513936009.

It is an arithmetic number, because the mean of its divisors is an integer number (22513936009).

Almost surely, 2^45027872017 is an apocalyptic number.

It is an amenable number.

45027872017 is a deficient number, since it is larger than the sum of its proper divisors (1).

45027872017 is an equidigital number, since it uses as much as digits as its factorization.

45027872017 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 219520, while the sum is 43.

The spelling of 45027872017 in words is "forty-five billion, twenty-seven million, eight hundred seventy-two thousand, seventeen".