8429217712 has 20 divisors (see below), whose sum is σ = 17292292776. Its totient is φ = 3966690560.

The previous prime is 8429217697. The next prime is 8429217743. The reversal of 8429217712 is 2177129248.

It is a super-2 number, since 2×8429217712² (a number of 21 digits) contains 22 as substring.

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, 15494614 + ... + 15495157.

Almost surely, 2^8429217712 is an apocalyptic number.

It is an amenable number.

8429217712 is an abundant number, since it is smaller than the sum of its proper divisors (8863075064).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

8429217712 is a wasteful number, since it uses less digits than its factorization.

8429217712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30989796 (or 30989790 counting only the distinct ones).

The product of its digits is 112896, while the sum is 43.

The square root of 8429217712 is about 91810.7712199391. The cubic root of 8429217712 is about 2035.1468732321.

The spelling of 8429217712 in words is "eight billion, four hundred twenty-nine million, two hundred seventeen thousand, seven hundred twelve".