45027878017 has 2 divisors, whose sum is σ = 45027878018. Its totient is φ = 45027878016.

The previous prime is 45027878011. The next prime is 45027878033. The reversal of 45027878017 is 71087872054.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 44913901041 + 113976976 = 211929^2 + 10676^2 .

It is a cyclic number.

It is not a de Polignac number, because 45027878017 - 2³ = 45027878009 is a prime.

It is not a weakly prime, because it can be changed into another prime (45027878011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22513939008 + 22513939009.

It is an arithmetic number, because the mean of its divisors is an integer number (22513939009).

Almost surely, 2^45027878017 is an apocalyptic number.

It is an amenable number.

45027878017 is a deficient number, since it is larger than the sum of its proper divisors (1).

45027878017 is an equidigital number, since it uses as much as digits as its factorization.

45027878017 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 878080, while the sum is 49.

The spelling of 45027878017 in words is "forty-five billion, twenty-seven million, eight hundred seventy-eight thousand, seventeen".