128700845047 has 2 divisors, whose sum is σ = 128700845048. Its totient is φ = 128700845046.

The previous prime is 128700844931. The next prime is 128700845051. The reversal of 128700845047 is 740548007821.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-128700845047 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 128700844988 and 128700845006.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (128700845747) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 64350422523 + 64350422524.

It is an arithmetic number, because the mean of its divisors is an integer number (64350422524).

Almost surely, 2^128700845047 is an apocalyptic number.

128700845047 is a deficient number, since it is larger than the sum of its proper divisors (1).

128700845047 is an equidigital number, since it uses as much as digits as its factorization.

128700845047 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 501760, while the sum is 46.

Subtracting from 128700845047 its sum of digits (46), we obtain a square (128700845001 = 358749²).

The spelling of 128700845047 in words is "one hundred twenty-eight billion, seven hundred million, eight hundred forty-five thousand, forty-seven".