540572760221173 has 4 divisors (see below), whose sum is σ = 572371157881260. Its totient is φ = 508774362561088.

The previous prime is 540572760221159. The next prime is 540572760221189. The reversal of 540572760221173 is 371122067275045.

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

It can be written as a sum of positive squares in 2 ways, for example, as 313074875742084 + 227497884479089 = 17693922^2 + 15083033^2 .

It is a de Polignac number, because none of the positive numbers 2^k-540572760221173 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 540572760221173.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (540572760227173) 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, 15899198830018 + ... + 15899198830051.

It is an arithmetic number, because the mean of its divisors is an integer number (143092789470315).

Almost surely, 2^{540572760221173} is an apocalyptic number.

It is an amenable number.

540572760221173 is a deficient number, since it is larger than the sum of its proper divisors (31798397660087).

540572760221173 is a wasteful number, since it uses less digits than its factorization.

540572760221173 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31798397660086.

The product of its (nonzero) digits is 4939200, while the sum is 52.

The spelling of 540572760221173 in words is "five hundred forty trillion, five hundred seventy-two billion, seven hundred sixty million, two hundred twenty-one thousand, one hundred seventy-three".