45617558321 has 2 divisors, whose sum is σ = 45617558322. Its totient is φ = 45617558320.

The previous prime is 45617558317. The next prime is 45617558333. The reversal of 45617558321 is 12385571654.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 26925199921 + 18692358400 = 164089^2 + 136720^2 .

It is a cyclic number.

It is not a de Polignac number, because 45617558321 - 2² = 45617558317 is a prime.

It is not a weakly prime, because it can be changed into another prime (45617558341) 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, 22808779160 + 22808779161.

It is an arithmetic number, because the mean of its divisors is an integer number (22808779161).

Almost surely, 2^45617558321 is an apocalyptic number.

It is an amenable number.

45617558321 is a deficient number, since it is larger than the sum of its proper divisors (1).

45617558321 is an equidigital number, since it uses as much as digits as its factorization.

45617558321 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1008000, while the sum is 47.

The spelling of 45617558321 in words is "forty-five billion, six hundred seventeen million, five hundred fifty-eight thousand, three hundred twenty-one".