64268278553 has 2 divisors, whose sum is σ = 64268278554. Its totient is φ = 64268278552.

The previous prime is 64268278523. The next prime is 64268278567. The reversal of 64268278553 is 35587286246.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 33857104009 + 30411174544 = 184003^2 + 174388^2 .

It is a cyclic number.

It is not a de Polignac number, because 64268278553 - 2¹² = 64268274457 is a prime.

It is a super-3 number, since 3×64268278553³ (a number of 33 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (64268278513) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32134139276 + 32134139277.

It is an arithmetic number, because the mean of its divisors is an integer number (32134139277).

Almost surely, 2^64268278553 is an apocalyptic number.

It is an amenable number.

64268278553 is a deficient number, since it is larger than the sum of its proper divisors (1).

64268278553 is an equidigital number, since it uses as much as digits as its factorization.

64268278553 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 19353600, while the sum is 56.

The spelling of 64268278553 in words is "sixty-four billion, two hundred sixty-eight million, two hundred seventy-eight thousand, five hundred fifty-three".