128247882766 has 8 divisors (see below), whose sum is σ = 192591178920. Its totient is φ = 64050823128.

The previous prime is 128247882671. The next prime is 128247882767. The reversal of 128247882766 is 667288742821.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (128247882767) by changing a digit.

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 in 3 ways as a sum of consecutive naturals, for example, 36556936 + ... + 36560443.

It is an arithmetic number, because the mean of its divisors is an integer number (24073897365).

Almost surely, 2^128247882766 is an apocalyptic number.

128247882766 is a deficient number, since it is larger than the sum of its proper divisors (64343296154).

128247882766 is an equidigital number, since it uses as much as digits as its factorization.

128247882766 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73118258.

The product of its digits is 28901376, while the sum is 61.

The spelling of 128247882766 in words is "one hundred twenty-eight billion, two hundred forty-seven million, eight hundred eighty-two thousand, seven hundred sixty-six".