13263551342557 has 2 divisors, whose sum is σ = 13263551342558. Its totient is φ = 13263551342556.

The previous prime is 13263551342477. The next prime is 13263551342563. The reversal of 13263551342557 is 75524315536231.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12729403773241 + 534147569316 = 3567829^2 + 730854^2 .

It is a cyclic number.

It is not a de Polignac number, because 13263551342557 - 2¹⁹ = 13263550818269 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13263558342557) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6631775671278 + 6631775671279.

It is an arithmetic number, because the mean of its divisors is an integer number (6631775671279).

Almost surely, 2^{13263551342557} is an apocalyptic number.

It is an amenable number.

13263551342557 is a deficient number, since it is larger than the sum of its proper divisors (1).

13263551342557 is an equidigital number, since it uses as much as digits as its factorization.

13263551342557 is an evil number, because the sum of its binary digits is even.

The product of its digits is 11340000, while the sum is 52.

Adding to 13263551342557 its reverse (75524315536231), we get a palindrome (88787866878788).

The spelling of 13263551342557 in words is "thirteen trillion, two hundred sixty-three billion, five hundred fifty-one million, three hundred forty-two thousand, five hundred fifty-seven".