540421530641 has 2 divisors, whose sum is σ = 540421530642. Its totient is φ = 540421530640.

The previous prime is 540421530557. The next prime is 540421530667. The reversal of 540421530641 is 146035124045.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 409189223041 + 131232307600 = 639679^2 + 362260^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-540421530641 is a prime.

It is a super-2 number, since 2×540421530641² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (540421530541) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 270210765320 + 270210765321.

It is an arithmetic number, because the mean of its divisors is an integer number (270210765321).

Almost surely, 2^540421530641 is an apocalyptic number.

It is an amenable number.

540421530641 is a deficient number, since it is larger than the sum of its proper divisors (1).

540421530641 is an equidigital number, since it uses as much as digits as its factorization.

540421530641 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 57600, while the sum is 35.

Adding to 540421530641 its reverse (146035124045), we get a palindrome (686456654686).

The spelling of 540421530641 in words is "five hundred forty billion, four hundred twenty-one million, five hundred thirty thousand, six hundred forty-one".