543211340621 has 4 divisors (see below), whose sum is σ = 571801411200. Its totient is φ = 514621270044.

The previous prime is 543211340611. The next prime is 543211340669. The reversal of 543211340621 is 126043112345.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 543211340621 - 2⁶ = 543211340557 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (543211340611) 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, 14295035261 + ... + 14295035298.

It is an arithmetic number, because the mean of its divisors is an integer number (142950352800).

Almost surely, 2^543211340621 is an apocalyptic number.

It is an amenable number.

543211340621 is a deficient number, since it is larger than the sum of its proper divisors (28590070579).

543211340621 is a wasteful number, since it uses less digits than its factorization.

543211340621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28590070578.

The product of its (nonzero) digits is 17280, while the sum is 32.

Adding to 543211340621 its reverse (126043112345), we get a palindrome (669254452966).

The spelling of 543211340621 in words is "five hundred forty-three billion, two hundred eleven million, three hundred forty thousand, six hundred twenty-one".