128699999983 has 2 divisors, whose sum is σ = 128699999984. Its totient is φ = 128699999982.

The previous prime is 128699999969. The next prime is 128700000017. The reversal of 128699999983 is 389999996821.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 128699999983 - 2⁵ = 128699999951 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 128699999897 and 128699999906.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (128699919983) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 64349999991 + 64349999992.

It is an arithmetic number, because the mean of its divisors is an integer number (64349999992).

Almost surely, 2^128699999983 is an apocalyptic number.

128699999983 is a deficient number, since it is larger than the sum of its proper divisors (1).

128699999983 is an equidigital number, since it uses as much as digits as its factorization.

128699999983 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1224440064, while the sum is 82.

The spelling of 128699999983 in words is "one hundred twenty-eight billion, six hundred ninety-nine million, nine hundred ninety-nine thousand, nine hundred eighty-three".