6542123412 has 48 divisors (see below), whose sum is σ = 16853340672. Its totient is φ = 1958573280.

The previous prime is 6542123353. The next prime is 6542123449. The reversal of 6542123412 is 2143212456.

It is a self number, because there is not a number n which added to its sum of digits gives 6542123412.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 287608 + ... + 309519.

It is an arithmetic number, because the mean of its divisors is an integer number (351111264).

Almost surely, 2^6542123412 is an apocalyptic number.

It is an amenable number.

6542123412 is an abundant number, since it is smaller than the sum of its proper divisors (10311217260).

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

6542123412 is a wasteful number, since it uses less digits than its factorization.

6542123412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 597228 (or 597226 counting only the distinct ones).

The product of its digits is 11520, while the sum is 30.

The square root of 6542123412 is about 80883.3939198894. The cubic root of 6542123412 is about 1870.2783396108.

Adding to 6542123412 its reverse (2143212456), we get a palindrome (8685335868).

The spelling of 6542123412 in words is "six billion, five hundred forty-two million, one hundred twenty-three thousand, four hundred twelve".