542571836520 has 64 divisors (see below), whose sum is σ = 1860246299520. Its totient is φ = 124016419584.

The previous prime is 542571836519. The next prime is 542571836591. The reversal of 542571836520 is 25638175245.

542571836520 is digitally balanced in base 7, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 542571836520.

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, 322958587 + ... + 322960266.

It is an arithmetic number, because the mean of its divisors is an integer number (29066348430).

Almost surely, 2^542571836520 is an apocalyptic number.

It is an amenable number.

542571836520 is an abundant number, since it is smaller than the sum of its proper divisors (1317674463000).

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

542571836520 is a wasteful number, since it uses less digits than its factorization.

542571836520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 645918874 (or 645918870 counting only the distinct ones).

The product of its (nonzero) digits is 2016000, while the sum is 48.

The spelling of 542571836520 in words is "five hundred forty-two billion, five hundred seventy-one million, eight hundred thirty-six thousand, five hundred twenty".