213674193234 has 24 divisors (see below), whose sum is σ = 462969990912. Its totient is φ = 71223309720.

The previous prime is 213674193233. The next prime is 213674193251. The reversal of 213674193234 is 432391476312.

It is a self number, because there is not a number n which added to its sum of digits gives 213674193234.

It is not an unprimeable number, because it can be changed into a prime (213674193233) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1213239 + ... + 1378149.

It is an arithmetic number, because the mean of its divisors is an integer number (19290416288).

Almost surely, 2^213674193234 is an apocalyptic number.

213674193234 is an abundant number, since it is smaller than the sum of its proper divisors (249295797678).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

213674193234 is a wasteful number, since it uses less digits than its factorization.

213674193234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 236902 (or 236899 counting only the distinct ones).

The product of its digits is 653184, while the sum is 45.

The spelling of 213674193234 in words is "two hundred thirteen billion, six hundred seventy-four million, one hundred ninety-three thousand, two hundred thirty-four".