128284126078626 has 80 divisors (see below), whose sum is σ = 328519876164480. Its totient is φ = 36652170867840.

The previous prime is 128284126078607. The next prime is 128284126078637. The reversal of 128284126078626 is 626870621482821.

It is a happy number.

128284126078626 is a `hidden beast` number, since 1 + 2 + 8 + 2 + 8 + 4 + 12 + 607 + 8 + 6 + 2 + 6 = 666.

It is a super-3 number, since 3×128284126078626³ (a number of 43 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 101384746 + ... + 102642266.

It is an arithmetic number, because the mean of its divisors is an integer number (4106498452056).

Almost surely, 2^{128284126078626} is an apocalyptic number.

128284126078626 is an abundant number, since it is smaller than the sum of its proper divisors (200235750085854).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

128284126078626 is a wasteful number, since it uses less digits than its factorization.

128284126078626 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1347501 (or 1347492 counting only the distinct ones).

The product of its (nonzero) digits is 49545216, while the sum is 63.

The spelling of 128284126078626 in words is "one hundred twenty-eight trillion, two hundred eighty-four billion, one hundred twenty-six million, seventy-eight thousand, six hundred twenty-six".