540843926779 has 8 divisors (see below), whose sum is σ = 582714636560. Its totient is φ = 499011407136.

The previous prime is 540843926771. The next prime is 540843926809. The reversal of 540843926779 is 977629348045.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 540843926779 - 2³ = 540843926771 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 540843926779.

It is not an unprimeable number, because it can be changed into a prime (540843926771) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9518112 + ... + 9574765.

It is an arithmetic number, because the mean of its divisors is an integer number (72839329570).

Almost surely, 2^540843926779 is an apocalyptic number.

540843926779 is a deficient number, since it is larger than the sum of its proper divisors (41870709781).

540843926779 is a wasteful number, since it uses less digits than its factorization.

540843926779 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19095069.

The product of its (nonzero) digits is 91445760, while the sum is 64.

The spelling of 540843926779 in words is "five hundred forty billion, eight hundred forty-three million, nine hundred twenty-six thousand, seven hundred seventy-nine".