217420882862 has 8 divisors (see below), whose sum is σ = 326165801976. Its totient is φ = 108698948872.

The previous prime is 217420882853. The next prime is 217420882871. The reversal of 217420882862 is 268288024712.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (217420882853) and next prime (217420882871).

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

It is a super-2 number, since 2×217420882862² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 217420882862.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5722613 + ... + 5760480.

It is an arithmetic number, because the mean of its divisors is an integer number (40770725247).

Almost surely, 2^217420882862 is an apocalyptic number.

217420882862 is a deficient number, since it is larger than the sum of its proper divisors (108744919114).

217420882862 is a wasteful number, since it uses less digits than its factorization.

217420882862 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11492562.

The product of its (nonzero) digits is 1376256, while the sum is 50.

The spelling of 217420882862 in words is "two hundred seventeen billion, four hundred twenty million, eight hundred eighty-two thousand, eight hundred sixty-two".