45321712217 has 16 divisors (see below), whose sum is σ = 46956490560. Its totient is φ = 43710095808.

The previous prime is 45321712213. The next prime is 45321712223. The reversal of 45321712217 is 71221712354.

It is a cyclic number.

It is not a de Polignac number, because 45321712217 - 2² = 45321712213 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (45321712211) 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 in 15 ways as a sum of consecutive naturals, for example, 2088698 + ... + 2110284.

It is an arithmetic number, because the mean of its divisors is an integer number (2934780660).

Almost surely, 2^45321712217 is an apocalyptic number.

It is an amenable number.

45321712217 is a deficient number, since it is larger than the sum of its proper divisors (1634778343).

45321712217 is a wasteful number, since it uses less digits than its factorization.

45321712217 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22120.

The product of its digits is 23520, while the sum is 35.

The spelling of 45321712217 in words is "forty-five billion, three hundred twenty-one million, seven hundred twelve thousand, two hundred seventeen".