128085646246 has 4 divisors (see below), whose sum is σ = 192128469372. Its totient is φ = 64042823122.

The previous prime is 128085646229. The next prime is 128085646259. The reversal of 128085646246 is 642646580821.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a junction number, because it is equal to n+sod(n) for n = 128085646193 and 128085646202.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32021411560 + ... + 32021411563.

It is an arithmetic number, because the mean of its divisors is an integer number (48032117343).

Almost surely, 2^128085646246 is an apocalyptic number.

128085646246 is a deficient number, since it is larger than the sum of its proper divisors (64042823126).

128085646246 is an equidigital number, since it uses as much as digits as its factorization.

128085646246 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64042823125.

The product of its (nonzero) digits is 4423680, while the sum is 52.

The spelling of 128085646246 in words is "one hundred twenty-eight billion, eighty-five million, six hundred forty-six thousand, two hundred forty-six".