128934846863 has 2 divisors, whose sum is σ = 128934846864. Its totient is φ = 128934846862.

The previous prime is 128934846857. The next prime is 128934846871. The reversal of 128934846863 is 368648439821.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-128934846863 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 128934846796 and 128934846805.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (128934846763) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 64467423431 + 64467423432.

It is an arithmetic number, because the mean of its divisors is an integer number (64467423432).

Almost surely, 2^128934846863 is an apocalyptic number.

128934846863 is a deficient number, since it is larger than the sum of its proper divisors (1).

128934846863 is an equidigital number, since it uses as much as digits as its factorization.

128934846863 is an evil number, because the sum of its binary digits is even.

The product of its digits is 47775744, while the sum is 62.

The spelling of 128934846863 in words is "one hundred twenty-eight billion, nine hundred thirty-four million, eight hundred forty-six thousand, eight hundred sixty-three".