1115028687255 has 48 divisors (see below), whose sum is σ = 2076426925920. Its totient is φ = 509455204608.

The previous prime is 1115028687221. The next prime is 1115028687257. The reversal of 1115028687255 is 5527868205111.

It is not a de Polignac number, because 1115028687255 - 2⁹ = 1115028686743 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1115028687198 and 1115028687207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1115028687257) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 975481 + ... + 1783709.

It is an arithmetic number, because the mean of its divisors is an integer number (43258894290).

Almost surely, 2^{1115028687255} is an apocalyptic number.

1115028687255 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1115028687255 is a deficient number, since it is larger than the sum of its proper divisors (961398238665).

1115028687255 is a wasteful number, since it uses less digits than its factorization.

1115028687255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 810128 (or 810121 counting only the distinct ones).

The product of its (nonzero) digits is 1344000, while the sum is 51.

The spelling of 1115028687255 in words is "one trillion, one hundred fifteen billion, twenty-eight million, six hundred eighty-seven thousand, two hundred fifty-five".