540081844501 has 2 divisors, whose sum is σ = 540081844502. Its totient is φ = 540081844500.

The previous prime is 540081844481. The next prime is 540081844513. The reversal of 540081844501 is 105448180045.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 411201562500 + 128880282001 = 641250^2 + 358999^2 .

It is a cyclic number.

It is not a de Polignac number, because 540081844501 - 2¹³ = 540081836309 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (540081884501) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 270040922250 + 270040922251.

It is an arithmetic number, because the mean of its divisors is an integer number (270040922251).

Almost surely, 2^540081844501 is an apocalyptic number.

It is an amenable number.

540081844501 is a deficient number, since it is larger than the sum of its proper divisors (1).

540081844501 is an equidigital number, since it uses as much as digits as its factorization.

540081844501 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 102400, while the sum is 40.

The spelling of 540081844501 in words is "five hundred forty billion, eighty-one million, eight hundred forty-four thousand, five hundred one".