216872593293 has 8 divisors (see below), whose sum is σ = 289180209888. Its totient is φ = 144573352784.

The previous prime is 216872593253. The next prime is 216872593297. The reversal of 216872593293 is 392395278612.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 216872593293 - 2¹⁰ = 216872592269 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (216872593297) 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, 2033355 + ... + 2137352.

It is an arithmetic number, because the mean of its divisors is an integer number (36147526236).

Almost surely, 2^216872593293 is an apocalyptic number.

It is an amenable number.

216872593293 is a deficient number, since it is larger than the sum of its proper divisors (72307616595).

216872593293 is a wasteful number, since it uses less digits than its factorization.

216872593293 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4188043.

The product of its digits is 9797760, while the sum is 57.

The spelling of 216872593293 in words is "two hundred sixteen billion, eight hundred seventy-two million, five hundred ninety-three thousand, two hundred ninety-three".