128257252504859 has 2 divisors, whose sum is σ = 128257252504860. Its totient is φ = 128257252504858.

The previous prime is 128257252504831. The next prime is 128257252504897. The reversal of 128257252504859 is 958405252752821.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-128257252504859 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 128257252504795 and 128257252504804.

It is not a weakly prime, because it can be changed into another prime (128257252507859) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 64128626252429 + 64128626252430.

It is an arithmetic number, because the mean of its divisors is an integer number (64128626252430).

Almost surely, 2^{128257252504859} is an apocalyptic number.

128257252504859 is a deficient number, since it is larger than the sum of its proper divisors (1).

128257252504859 is an equidigital number, since it uses as much as digits as its factorization.

128257252504859 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 161280000, while the sum is 65.

The spelling of 128257252504859 in words is "one hundred twenty-eight trillion, two hundred fifty-seven billion, two hundred fifty-two million, five hundred four thousand, eight hundred fifty-nine".