213293934684 has 18 divisors (see below), whose sum is σ = 539159668320. Its totient is φ = 71097978216.

The previous prime is 213293934647. The next prime is 213293934781. The reversal of 213293934684 is 486439392312.

213293934684 is a `hidden beast` number, since 2 + 1 + 3 + 2 + 93 + 93 + 468 + 4 = 666.

It is a tau number, because it is divible by the number of its divisors (18).

It is a self number, because there is not a number n which added to its sum of digits gives 213293934684.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2962415724 + ... + 2962415795.

Almost surely, 2^213293934684 is an apocalyptic number.

It is an amenable number.

213293934684 is an abundant number, since it is smaller than the sum of its proper divisors (325865733636).

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

213293934684 is a wasteful number, since it uses less digits than its factorization.

213293934684 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5924831529 (or 5924831524 counting only the distinct ones).

The product of its digits is 6718464, while the sum is 54.

The spelling of 213293934684 in words is "two hundred thirteen billion, two hundred ninety-three million, nine hundred thirty-four thousand, six hundred eighty-four".