128947064527 has 2 divisors, whose sum is σ = 128947064528. Its totient is φ = 128947064526.

The previous prime is 128947064459. The next prime is 128947064567. The reversal of 128947064527 is 725460749821.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-128947064527 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (128947064567) 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, 64473532263 + 64473532264.

It is an arithmetic number, because the mean of its divisors is an integer number (64473532264).

Almost surely, 2^128947064527 is an apocalyptic number.

128947064527 is a deficient number, since it is larger than the sum of its proper divisors (1).

128947064527 is an equidigital number, since it uses as much as digits as its factorization.

128947064527 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6773760, while the sum is 55.

The spelling of 128947064527 in words is "one hundred twenty-eight billion, nine hundred forty-seven million, sixty-four thousand, five hundred twenty-seven".