216878216360573 has 8 divisors (see below), whose sum is σ = 227168189601408. Its totient is φ = 206659950250864.

The previous prime is 216878216360483. The next prime is 216878216360591. The reversal of 216878216360573 is 375063612878612.

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 216878216360573 - 2⁸ = 216878216360317 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (216878216363573) 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, 17926776590 + ... + 17926788687.

It is an arithmetic number, because the mean of its divisors is an integer number (28396023700176).

Almost surely, 2^{216878216360573} is an apocalyptic number.

216878216360573 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

It is an amenable number.

216878216360573 is a deficient number, since it is larger than the sum of its proper divisors (10289973240835).

216878216360573 is a wasteful number, since it uses less digits than its factorization.

216878216360573 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35853565563.

The product of its (nonzero) digits is 121927680, while the sum is 65.

The spelling of 216878216360573 in words is "two hundred sixteen trillion, eight hundred seventy-eight billion, two hundred sixteen million, three hundred sixty thousand, five hundred seventy-three".