216727086028 has 6 divisors (see below), whose sum is σ = 379272400556. Its totient is φ = 108363543012.

The previous prime is 216727085959. The next prime is 216727086053. The reversal of 216727086028 is 820680727612.

It is a super-2 number, since 2×216727086028² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27090885750 + ... + 27090885757.

Almost surely, 2^216727086028 is an apocalyptic number.

It is an amenable number.

216727086028 is a deficient number, since it is larger than the sum of its proper divisors (162545314528).

216727086028 is a wasteful number, since it uses less digits than its factorization.

216727086028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54181771511 (or 54181771509 counting only the distinct ones).

The product of its (nonzero) digits is 903168, while the sum is 49.

The spelling of 216727086028 in words is "two hundred sixteen billion, seven hundred twenty-seven million, eighty-six thousand, twenty-eight".