539731813769 has 2 divisors, whose sum is σ = 539731813770. Its totient is φ = 539731813768.

The previous prime is 539731813669. The next prime is 539731813783. The reversal of 539731813769 is 967318137935.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 538151353744 + 1580460025 = 733588^2 + 39755^2 .

It is a cyclic number.

It is not a de Polignac number, because 539731813769 - 2¹⁶ = 539731748233 is a prime.

It is a super-2 number, since 2×539731813769² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (539731813799) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 269865906884 + 269865906885.

It is an arithmetic number, because the mean of its divisors is an integer number (269865906885).

Almost surely, 2^539731813769 is an apocalyptic number.

It is an amenable number.

539731813769 is a deficient number, since it is larger than the sum of its proper divisors (1).

539731813769 is an equidigital number, since it uses as much as digits as its factorization.

539731813769 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 25719120, while the sum is 62.

The spelling of 539731813769 in words is "five hundred thirty-nine billion, seven hundred thirty-one million, eight hundred thirteen thousand, seven hundred sixty-nine".