268855452553 has 2 divisors, whose sum is σ = 268855452554. Its totient is φ = 268855452552.

The previous prime is 268855452533. The next prime is 268855452589. The reversal of 268855452553 is 355254558862.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 247443568969 + 21411883584 = 497437^2 + 146328^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-268855452553 is a prime.

It is not a weakly prime, because it can be changed into another prime (268855452533) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 134427726276 + 134427726277.

It is an arithmetic number, because the mean of its divisors is an integer number (134427726277).

Almost surely, 2^268855452553 is an apocalyptic number.

It is an amenable number.

268855452553 is a deficient number, since it is larger than the sum of its proper divisors (1).

268855452553 is an equidigital number, since it uses as much as digits as its factorization.

268855452553 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 57600000, while the sum is 58.

The spelling of 268855452553 in words is "two hundred sixty-eight billion, eight hundred fifty-five million, four hundred fifty-two thousand, five hundred fifty-three".