2217466461457 has 8 divisors (see below), whose sum is σ = 2388210884136. Its totient is φ = 2046746335872.

The previous prime is 2217466461449. The next prime is 2217466461461. The reversal of 2217466461457 is 7541646647122.

It is a Cunningham number, because it is equal to 1489116²+1.

It can be written as a sum of positive squares in 4 ways, for example, as 1 + 2217466461456 = 1^2 + 1489116^2 .

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 2217466461457 - 2³ = 2217466461449 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2217466461398 and 2217466461407.

It is not an unprimeable number, because it can be changed into a prime (2217466461437) 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, 5884498 + ... + 6249979.

It is an arithmetic number, because the mean of its divisors is an integer number (298526360517).

Almost surely, 2^{2217466461457} is an apocalyptic number.

It is an amenable number.

2217466461457 is a deficient number, since it is larger than the sum of its proper divisors (170744422679).

2217466461457 is a wasteful number, since it uses less digits than its factorization.

2217466461457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12148547.

The product of its digits is 13547520, while the sum is 55.

The spelling of 2217466461457 in words is "two trillion, two hundred seventeen billion, four hundred sixty-six million, four hundred sixty-one thousand, four hundred fifty-seven".