818127216 has 50 divisors (see below), whose sum is σ = 2367901272. Its totient is φ = 272708640.

The previous prime is 818127203. The next prime is 818127223. The reversal of 818127216 is 612721818.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an alternating number because its digits alternate between even and odd.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 314340 + ... + 316931.

Almost surely, 2^818127216 is an apocalyptic number.

It is an amenable number.

818127216 is an abundant number, since it is smaller than the sum of its proper divisors (1549774056).

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

818127216 is a wasteful number, since it uses less digits than its factorization.

818127216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 631291 (or 631276 counting only the distinct ones).

The product of its digits is 10752, while the sum is 36.

The square root of 818127216 is about 28602.9232072528. The cubic root of 818127216 is about 935.2770551701.

The spelling of 818127216 in words is "eight hundred eighteen million, one hundred twenty-seven thousand, two hundred sixteen".