128247882886 has 4 divisors (see below), whose sum is σ = 192371824332. Its totient is φ = 64123941442.

The previous prime is 128247882857. The next prime is 128247882923. The reversal of 128247882886 is 688288742821.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 688288742821 = 397 ⋅1733724793.

It is a super-3 number, since 3×128247882886³ (a number of 34 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32061970720 + ... + 32061970723.

It is an arithmetic number, because the mean of its divisors is an integer number (48092956083).

Almost surely, 2^128247882886 is an apocalyptic number.

128247882886 is a deficient number, since it is larger than the sum of its proper divisors (64123941446).

128247882886 is an equidigital number, since it uses as much as digits as its factorization.

128247882886 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64123941445.

The product of its digits is 44040192, while the sum is 64.

The spelling of 128247882886 in words is "one hundred twenty-eight billion, two hundred forty-seven million, eight hundred eighty-two thousand, eight hundred eighty-six".