213189934563 has 12 divisors (see below), whose sum is σ = 307945081080. Its totient is φ = 142124747136.

The previous prime is 213189934543. The next prime is 213189934619. The reversal of 213189934563 is 365439981312.

213189934563 is a `hidden beast` number, since 2 + 1 + 3 + 189 + 9 + 3 + 456 + 3 = 666.

It is not a de Polignac number, because 213189934563 - 2³⁴ = 196010065379 is a prime.

It is not an unprimeable number, because it can be changed into a prime (213189934543) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1068595 + ... + 1252307.

It is an arithmetic number, because the mean of its divisors is an integer number (25662090090).

Almost surely, 2^213189934563 is an apocalyptic number.

213189934563 is a deficient number, since it is larger than the sum of its proper divisors (94755146517).

213189934563 is a wasteful number, since it uses less digits than its factorization.

213189934563 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 312658 (or 312655 counting only the distinct ones).

The product of its digits is 4199040, while the sum is 54.

The spelling of 213189934563 in words is "two hundred thirteen billion, one hundred eighty-nine million, nine hundred thirty-four thousand, five hundred sixty-three".