128486762255 has 8 divisors (see below), whose sum is σ = 154188045024. Its totient is φ = 102786789600.

The previous prime is 128486762251. The next prime is 128486762269. The reversal of 128486762255 is 552267684821.

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

It is not a de Polignac number, because 128486762255 - 2² = 128486762251 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 128486762255.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (128486762251) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 97016 + ... + 516125.

It is an arithmetic number, because the mean of its divisors is an integer number (19273505628).

Almost surely, 2^128486762255 is an apocalyptic number.

128486762255 is a deficient number, since it is larger than the sum of its proper divisors (25701282769).

128486762255 is an equidigital number, since it uses as much as digits as its factorization.

128486762255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 655057.

The product of its digits is 12902400, while the sum is 56.

The spelling of 128486762255 in words is "one hundred twenty-eight billion, four hundred eighty-six million, seven hundred sixty-two thousand, two hundred fifty-five".