45717972217 has 8 divisors (see below), whose sum is σ = 45908087400. Its totient is φ = 45528138240.

The previous prime is 45717972193. The next prime is 45717972221. The reversal of 45717972217 is 71227971754.

It can be written as a sum of positive squares in 4 ways, for example, as 13022461456 + 32695510761 = 114116^2 + 180819^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 45717972217 - 2¹¹ = 45717970169 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (45717972257) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 258717 + ... + 397957.

It is an arithmetic number, because the mean of its divisors is an integer number (5738510925).

Almost surely, 2^45717972217 is an apocalyptic number.

It is an amenable number.

45717972217 is a deficient number, since it is larger than the sum of its proper divisors (190115183).

45717972217 is a wasteful number, since it uses less digits than its factorization.

45717972217 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140603.

The product of its digits is 1728720, while the sum is 52.

The spelling of 45717972217 in words is "forty-five billion, seven hundred seventeen million, nine hundred seventy-two thousand, two hundred seventeen".