216875086024 has 8 divisors (see below), whose sum is σ = 406640786310. Its totient is φ = 108437543008.

The previous prime is 216875085923. The next prime is 216875086049. The reversal of 216875086024 is 420680578612.

It can be written as a sum of positive squares in only one way, i.e., 191695108900 + 25179977124 = 437830^2 + 158682^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13554692869 + ... + 13554692884.

Almost surely, 2^216875086024 is an apocalyptic number.

It is an amenable number.

216875086024 is a deficient number, since it is larger than the sum of its proper divisors (189765700286).

216875086024 is a wasteful number, since it uses less digits than its factorization.

216875086024 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27109385759 (or 27109385755 counting only the distinct ones).

The product of its (nonzero) digits is 1290240, while the sum is 49.

The spelling of 216875086024 in words is "two hundred sixteen billion, eight hundred seventy-five million, eighty-six thousand, twenty-four".