213544532642 has 8 divisors (see below), whose sum is σ = 366076341696. Its totient is φ = 91519085412.

The previous prime is 213544532629. The next prime is 213544532647. The reversal of 213544532642 is 246235445312.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 213544532642.

It is not an unprimeable number, because it can be changed into a prime (213544532647) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7626590438 + ... + 7626590465.

It is an arithmetic number, because the mean of its divisors is an integer number (45759542712).

Almost surely, 2^213544532642 is an apocalyptic number.

213544532642 is a deficient number, since it is larger than the sum of its proper divisors (152531809054).

213544532642 is a wasteful number, since it uses less digits than its factorization.

213544532642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15253180912.

The product of its digits is 691200, while the sum is 41.

Adding to 213544532642 its reverse (246235445312), we get a palindrome (459779977954).

The spelling of 213544532642 in words is "two hundred thirteen billion, five hundred forty-four million, five hundred thirty-two thousand, six hundred forty-two".