8255775802798 has 4 divisors (see below), whose sum is σ = 12383663704200. Its totient is φ = 4127887901398.

The previous prime is 8255775802793. The next prime is 8255775802811. The reversal of 8255775802798 is 8972085775528.

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

It is a super-2 number, since 2×8255775802798² (a number of 27 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 8255775802798.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8255775802793) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2063943950698 + ... + 2063943950701.

It is an arithmetic number, because the mean of its divisors is an integer number (3095915926050).

Almost surely, 2^{8255775802798} is an apocalyptic number.

8255775802798 is a deficient number, since it is larger than the sum of its proper divisors (4127887901402).

8255775802798 is a wasteful number, since it uses less digits than its factorization.

8255775802798 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4127887901401.

The product of its (nonzero) digits is 790272000, while the sum is 73.

The spelling of 8255775802798 in words is "eight trillion, two hundred fifty-five billion, seven hundred seventy-five million, eight hundred two thousand, seven hundred ninety-eight".