8128252087255 has 4 divisors (see below), whose sum is σ = 9753902504712. Its totient is φ = 6502601669800.

The previous prime is 8128252087217. The next prime is 8128252087261. The reversal of 8128252087255 is 5527802528218.

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

It is a de Polignac number, because none of the positive numbers 2^k-8128252087255 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 8128252087196 and 8128252087205.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 812825208721 + ... + 812825208730.

It is an arithmetic number, because the mean of its divisors is an integer number (2438475626178).

Almost surely, 2^{8128252087255} is an apocalyptic number.

8128252087255 is a deficient number, since it is larger than the sum of its proper divisors (1625650417457).

8128252087255 is a wasteful number, since it uses less digits than its factorization.

8128252087255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1625650417456.

The product of its (nonzero) digits is 7168000, while the sum is 55.

The spelling of 8128252087255 in words is "eight trillion, one hundred twenty-eight billion, two hundred fifty-two million, eighty-seven thousand, two hundred fifty-five".