64544055427 has 2 divisors, whose sum is σ = 64544055428. Its totient is φ = 64544055426.

The previous prime is 64544055391. The next prime is 64544055467. The reversal of 64544055427 is 72455044546.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 64544055427 - 2¹⁵ = 64544022659 is a prime.

It is not a weakly prime, because it can be changed into another prime (64544055467) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32272027713 + 32272027714.

It is an arithmetic number, because the mean of its divisors is an integer number (32272027714).

Almost surely, 2^64544055427 is an apocalyptic number.

64544055427 is a deficient number, since it is larger than the sum of its proper divisors (1).

64544055427 is an equidigital number, since it uses as much as digits as its factorization.

64544055427 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2688000, while the sum is 46.

The spelling of 64544055427 in words is "sixty-four billion, five hundred forty-four million, fifty-five thousand, four hundred twenty-seven".