538254473857 has 2 divisors, whose sum is σ = 538254473858. Its totient is φ = 538254473856.

The previous prime is 538254473819. The next prime is 538254473893. The reversal of 538254473857 is 758374452835.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 529574942961 + 8679530896 = 727719^2 + 93164^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-538254473857 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 538254473795 and 538254473804.

It is not a weakly prime, because it can be changed into another prime (538254473357) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 269127236928 + 269127236929.

It is an arithmetic number, because the mean of its divisors is an integer number (269127236929).

Almost surely, 2^538254473857 is an apocalyptic number.

It is an amenable number.

538254473857 is a deficient number, since it is larger than the sum of its proper divisors (1).

538254473857 is an equidigital number, since it uses as much as digits as its factorization.

538254473857 is an evil number, because the sum of its binary digits is even.

The product of its digits is 112896000, while the sum is 61.

The spelling of 538254473857 in words is "five hundred thirty-eight billion, two hundred fifty-four million, four hundred seventy-three thousand, eight hundred fifty-seven".