45221747370505 has 4 divisors (see below), whose sum is σ = 54266096844612. Its totient is φ = 36177397896400.

The previous prime is 45221747370469. The next prime is 45221747370509. The reversal of 45221747370505 is 50507374712254.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 34695492722944 + 10526254647561 = 5890288^2 + 3244419^2 .

It is not a de Polignac number, because 45221747370505 - 2⁷ = 45221747370377 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (45221747370509) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4522174737046 + ... + 4522174737055.

It is an arithmetic number, because the mean of its divisors is an integer number (13566524211153).

Almost surely, 2^{45221747370505} is an apocalyptic number.

It is an amenable number.

45221747370505 is a deficient number, since it is larger than the sum of its proper divisors (9044349474107).

45221747370505 is an equidigital number, since it uses as much as digits as its factorization.

45221747370505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9044349474106.

The product of its (nonzero) digits is 8232000, while the sum is 52.

The spelling of 45221747370505 in words is "forty-five trillion, two hundred twenty-one billion, seven hundred forty-seven million, three hundred seventy thousand, five hundred five".