215930085873 has 8 divisors (see below), whose sum is σ = 288593911200. Its totient is φ = 143609825568.

The previous prime is 215930085863. The next prime is 215930085881. The reversal of 215930085873 is 378580039512.

It is a happy number.

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

It is not a de Polignac number, because 215930085873 - 2²⁹ = 215393214961 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (215930085863) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 85889788 + ... + 85892301.

It is an arithmetic number, because the mean of its divisors is an integer number (36074238900).

Almost surely, 2^215930085873 is an apocalyptic number.

It is an amenable number.

215930085873 is a deficient number, since it is larger than the sum of its proper divisors (72663825327).

215930085873 is a wasteful number, since it uses less digits than its factorization.

215930085873 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 171782511.

The product of its (nonzero) digits is 1814400, while the sum is 51.

The spelling of 215930085873 in words is "two hundred fifteen billion, nine hundred thirty million, eighty-five thousand, eight hundred seventy-three".