64815273353 has 2 divisors, whose sum is σ = 64815273354. Its totient is φ = 64815273352.

The previous prime is 64815273337. The next prime is 64815273449. The reversal of 64815273353 is 35337251846.

64815273353 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 58369110409 + 6446162944 = 241597^2 + 80288^2 .

It is a cyclic number.

It is not a de Polignac number, because 64815273353 - 2⁴ = 64815273337 is a prime.

It is a super-2 number, since 2×64815273353² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 64815273298 and 64815273307.

It is not a weakly prime, because it can be changed into another prime (64815273053) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32407636676 + 32407636677.

It is an arithmetic number, because the mean of its divisors is an integer number (32407636677).

Almost surely, 2^64815273353 is an apocalyptic number.

It is an amenable number.

64815273353 is a deficient number, since it is larger than the sum of its proper divisors (1).

64815273353 is an equidigital number, since it uses as much as digits as its factorization.

64815273353 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1814400, while the sum is 47.

The spelling of 64815273353 in words is "sixty-four billion, eight hundred fifteen million, two hundred seventy-three thousand, three hundred fifty-three".