72540341210543 has 2 divisors, whose sum is σ = 72540341210544. Its totient is φ = 72540341210542.

The previous prime is 72540341210503. The next prime is 72540341210549. The reversal of 72540341210543 is 34501214304527.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 72540341210543 - 2¹⁰ = 72540341209519 is a prime.

It is a super-2 number, since 2×72540341210543² (a number of 29 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 72540341210543.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (72540341210549) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36270170605271 + 36270170605272.

It is an arithmetic number, because the mean of its divisors is an integer number (36270170605272).

Almost surely, 2^{72540341210543} is an apocalyptic number.

72540341210543 is a deficient number, since it is larger than the sum of its proper divisors (1).

72540341210543 is an equidigital number, since it uses as much as digits as its factorization.

72540341210543 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 403200, while the sum is 41.

The spelling of 72540341210543 in words is "seventy-two trillion, five hundred forty billion, three hundred forty-one million, two hundred ten thousand, five hundred forty-three".