571439538142 has 16 divisors (see below), whose sum is σ = 936497553264. Its totient is φ = 259352280000.

The previous prime is 571439538139. The next prime is 571439538157. The reversal of 571439538142 is 241835934175.

It is a self number, because there is not a number n which added to its sum of digits gives 571439538142.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19633359 + ... + 19662442.

It is an arithmetic number, because the mean of its divisors is an integer number (58531097079).

Almost surely, 2^571439538142 is an apocalyptic number.

571439538142 is a deficient number, since it is larger than the sum of its proper divisors (365058015122).

571439538142 is a wasteful number, since it uses less digits than its factorization.

571439538142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39296475.

The product of its digits is 3628800, while the sum is 52.

The spelling of 571439538142 in words is "five hundred seventy-one billion, four hundred thirty-nine million, five hundred thirty-eight thousand, one hundred forty-two".