128964542251 has 2 divisors, whose sum is σ = 128964542252. Its totient is φ = 128964542250.

The previous prime is 128964542233. The next prime is 128964542279. The reversal of 128964542251 is 152245469821.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 128964542251 - 2²³ = 128956153643 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 128964542195 and 128964542204.

It is not a weakly prime, because it can be changed into another prime (128964522251) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 64482271125 + 64482271126.

It is an arithmetic number, because the mean of its divisors is an integer number (64482271126).

Almost surely, 2^128964542251 is an apocalyptic number.

128964542251 is a deficient number, since it is larger than the sum of its proper divisors (1).

128964542251 is an equidigital number, since it uses as much as digits as its factorization.

128964542251 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1382400, while the sum is 49.

The spelling of 128964542251 in words is "one hundred twenty-eight billion, nine hundred sixty-four million, five hundred forty-two thousand, two hundred fifty-one".