542643312612 has 192 divisors, whose sum is σ = 1400345210880. Its totient is φ = 162903343104.

The previous prime is 542643312539. The next prime is 542643312613. The reversal of 542643312612 is 216213346245.

It is not an unprimeable number, because it can be changed into a prime (542643312613) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 457154683 + ... + 457155869.

It is an arithmetic number, because the mean of its divisors is an integer number (7293464640).

Almost surely, 2^542643312612 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 542643312612, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (700172605440).

542643312612 is an abundant number, since it is smaller than the sum of its proper divisors (857701898268).

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

542643312612 is a wasteful number, since it uses less digits than its factorization.

542643312612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2450 (or 2448 counting only the distinct ones).

The product of its digits is 207360, while the sum is 39.

Adding to 542643312612 its reverse (216213346245), we get a palindrome (758856658857).

The spelling of 542643312612 in words is "five hundred forty-two billion, six hundred forty-three million, three hundred twelve thousand, six hundred twelve".