542411332621 has 4 divisors (see below), whose sum is σ = 542808123552. Its totient is φ = 542014541692.

The previous prime is 542411332613. The next prime is 542411332633. The reversal of 542411332621 is 126233114245.

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 542411332621 - 2³ = 542411332613 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 (542411330621) 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 3 ways as a sum of consecutive naturals, for example, 198393415 + ... + 198396148.

It is an arithmetic number, because the mean of its divisors is an integer number (135702030888).

Almost surely, 2^542411332621 is an apocalyptic number.

It is an amenable number.

542411332621 is a deficient number, since it is larger than the sum of its proper divisors (396790931).

542411332621 is a wasteful number, since it uses less digits than its factorization.

542411332621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 396790930.

The product of its digits is 34560, while the sum is 34.

Adding to 542411332621 its reverse (126233114245), we get a palindrome (668644446866).

The spelling of 542411332621 in words is "five hundred forty-two billion, four hundred eleven million, three hundred thirty-two thousand, six hundred twenty-one".