538263357761 has 2 divisors, whose sum is σ = 538263357762. Its totient is φ = 538263357760.

The previous prime is 538263357743. The next prime is 538263357817. The reversal of 538263357761 is 167753362835.

It is an a-pointer prime, because the next prime (538263357817) can be obtained adding 538263357761 to its sum of digits (56).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 423467753536 + 114795604225 = 650744^2 + 338815^2 .

It is a cyclic number.

It is not a de Polignac number, because 538263357761 - 2³⁴ = 521083488577 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 538263357697 and 538263357706.

It is not a weakly prime, because it can be changed into another prime (538263357461) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 269131678880 + 269131678881.

It is an arithmetic number, because the mean of its divisors is an integer number (269131678881).

Almost surely, 2^538263357761 is an apocalyptic number.

It is an amenable number.

538263357761 is a deficient number, since it is larger than the sum of its proper divisors (1).

538263357761 is an equidigital number, since it uses as much as digits as its factorization.

538263357761 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 19051200, while the sum is 56.

The spelling of 538263357761 in words is "five hundred thirty-eight billion, two hundred sixty-three million, three hundred fifty-seven thousand, seven hundred sixty-one".