64644026226053 has 2 divisors, whose sum is σ = 64644026226054. Its totient is φ = 64644026226052.

The previous prime is 64644026225959. The next prime is 64644026226061. The reversal of 64644026226053 is 35062262044646.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 62719541467489 + 1924484758564 = 7919567^2 + 1387258^2 .

It is a cyclic number.

It is not a de Polignac number, because 64644026226053 - 2²⁶ = 64643959117189 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 64644026225992 and 64644026226010.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (64644026226083) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32322013113026 + 32322013113027.

It is an arithmetic number, because the mean of its divisors is an integer number (32322013113027).

Almost surely, 2^{64644026226053} is an apocalyptic number.

It is an amenable number.

64644026226053 is a deficient number, since it is larger than the sum of its proper divisors (1).

64644026226053 is an equidigital number, since it uses as much as digits as its factorization.

64644026226053 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9953280, while the sum is 50.

The spelling of 64644026226053 in words is "sixty-four trillion, six hundred forty-four billion, twenty-six million, two hundred twenty-six thousand, fifty-three".