128253862281253 has 2 divisors, whose sum is σ = 128253862281254. Its totient is φ = 128253862281252.

The previous prime is 128253862281121. The next prime is 128253862281269. The reversal of 128253862281253 is 352182268352821.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 85294515663009 + 42959346618244 = 9235503^2 + 6554338^2 .

It is a cyclic number.

It is not a de Polignac number, because 128253862281253 - 2⁴⁵ = 93069490192421 is a prime.

It is a super-2 number, since 2×128253862281253² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (128253862281353) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 64126931140626 + 64126931140627.

It is an arithmetic number, because the mean of its divisors is an integer number (64126931140627).

Almost surely, 2^{128253862281253} is an apocalyptic number.

It is an amenable number.

128253862281253 is a deficient number, since it is larger than the sum of its proper divisors (1).

128253862281253 is an equidigital number, since it uses as much as digits as its factorization.

128253862281253 is an evil number, because the sum of its binary digits is even.

The product of its digits is 22118400, while the sum is 58.

The spelling of 128253862281253 in words is "one hundred twenty-eight trillion, two hundred fifty-three billion, eight hundred sixty-two million, two hundred eighty-one thousand, two hundred fifty-three".