540079142557 has 2 divisors, whose sum is σ = 540079142558. Its totient is φ = 540079142556.

The previous prime is 540079142521. The next prime is 540079142567. The reversal of 540079142557 is 755241970045.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 501227184676 + 38851957881 = 707974^2 + 197109^2 .

It is a cyclic number.

It is not a de Polignac number, because 540079142557 - 2⁷ = 540079142429 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 540079142557.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (540079142567) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 270039571278 + 270039571279.

It is an arithmetic number, because the mean of its divisors is an integer number (270039571279).

Almost surely, 2^540079142557 is an apocalyptic number.

It is an amenable number.

540079142557 is a deficient number, since it is larger than the sum of its proper divisors (1).

540079142557 is an equidigital number, since it uses as much as digits as its factorization.

540079142557 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1764000, while the sum is 49.

The spelling of 540079142557 in words is "five hundred forty billion, seventy-nine million, one hundred forty-two thousand, five hundred fifty-seven".