128656053479 has 2 divisors, whose sum is σ = 128656053480. Its totient is φ = 128656053478.

The previous prime is 128656053469. The next prime is 128656053509. The reversal of 128656053479 is 974350656821.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-128656053479 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (128656053469) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 64328026739 + 64328026740.

It is an arithmetic number, because the mean of its divisors is an integer number (64328026740).

It is a 1-persistent number, because it is pandigital, but 2⋅128656053479 = 257312106958 is not.

Almost surely, 2^128656053479 is an apocalyptic number.

128656053479 is a deficient number, since it is larger than the sum of its proper divisors (1).

128656053479 is an equidigital number, since it uses as much as digits as its factorization.

128656053479 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10886400, while the sum is 56.

The spelling of 128656053479 in words is "one hundred twenty-eight billion, six hundred fifty-six million, fifty-three thousand, four hundred seventy-nine".