540974839571 has 4 divisors (see below), whose sum is σ = 543357988872. Its totient is φ = 538591690272.

The previous prime is 540974839567. The next prime is 540974839621. The reversal of 540974839571 is 175938479045.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 540974839571 - 2² = 540974839567 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (540974899571) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1191574310 + ... + 1191574763.

It is an arithmetic number, because the mean of its divisors is an integer number (135839497218).

Almost surely, 2^540974839571 is an apocalyptic number.

540974839571 is a deficient number, since it is larger than the sum of its proper divisors (2383149301).

540974839571 is a wasteful number, since it uses less digits than its factorization.

540974839571 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2383149300.

The product of its (nonzero) digits is 38102400, while the sum is 62.

The spelling of 540974839571 in words is "five hundred forty billion, nine hundred seventy-four million, eight hundred thirty-nine thousand, five hundred seventy-one".