213134644452 has 48 divisors (see below), whose sum is σ = 513813686400. Its totient is φ = 68710804992.

The previous prime is 213134644451. The next prime is 213134644453. The reversal of 213134644452 is 254446431312.

213134644452 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (213134644451) and next prime (213134644453).

It is a self number, because there is not a number n which added to its sum of digits gives 213134644452.

It is not an unprimeable number, because it can be changed into a prime (213134644451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1363077 + ... + 1511372.

It is an arithmetic number, because the mean of its divisors is an integer number (10704451800).

Almost surely, 2^213134644452 is an apocalyptic number.

It is an amenable number.

213134644452 is an abundant number, since it is smaller than the sum of its proper divisors (300679041948).

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

213134644452 is a wasteful number, since it uses less digits than its factorization.

213134644452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2874660 (or 2874658 counting only the distinct ones).

The product of its digits is 276480, while the sum is 39.

The spelling of 213134644452 in words is "two hundred thirteen billion, one hundred thirty-four million, six hundred forty-four thousand, four hundred fifty-two".