255128086797 has 8 divisors (see below), whose sum is σ = 340337622720. Its totient is φ = 170001971040.

The previous prime is 255128086781. The next prime is 255128086819. The reversal of 255128086797 is 797680821552.

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

It is not a de Polignac number, because 255128086797 - 2⁴ = 255128086781 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 255128086797.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (255128086597) 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, 20847904 + ... + 20860137.

It is an arithmetic number, because the mean of its divisors is an integer number (42542202840).

Almost surely, 2^255128086797 is an apocalyptic number.

It is an amenable number.

255128086797 is a deficient number, since it is larger than the sum of its proper divisors (85209535923).

255128086797 is a wasteful number, since it uses less digits than its factorization.

255128086797 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41710083.

The product of its (nonzero) digits is 16934400, while the sum is 60.

The spelling of 255128086797 in words is "two hundred fifty-five billion, one hundred twenty-eight million, eighty-six thousand, seven hundred ninety-seven".