213765334256 has 40 divisors (see below), whose sum is σ = 415666014720. Its totient is φ = 106497248256.

The previous prime is 213765334049. The next prime is 213765334339. The reversal of 213765334256 is 652433567312.

It is a self number, because there is not a number n which added to its sum of digits gives 213765334256.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6313340 + ... + 6347108.

It is an arithmetic number, because the mean of its divisors is an integer number (10391650368).

Almost surely, 2^213765334256 is an apocalyptic number.

It is an amenable number.

213765334256 is a deficient number, since it is larger than the sum of its proper divisors (201900680464).

213765334256 is a wasteful number, since it uses less digits than its factorization.

213765334256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35193 (or 35187 counting only the distinct ones).

The product of its digits is 2721600, while the sum is 47.

The spelling of 213765334256 in words is "two hundred thirteen billion, seven hundred sixty-five million, three hundred thirty-four thousand, two hundred fifty-six".