1128367255842 has 32 divisors (see below), whose sum is σ = 2544907915200. Its totient is φ = 370508649984.

The previous prime is 1128367255823. The next prime is 1128367255849. The reversal of 1128367255842 is 2485527638211.

It is a happy number.

1128367255842 is a `hidden beast` number, since 1 + 1 + 2 + 8 + 36 + 7 + 25 + 584 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is not an unprimeable number, because it can be changed into a prime (1128367255849) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 155934367 + ... + 155941602.

It is an arithmetic number, because the mean of its divisors is an integer number (79528372350).

Almost surely, 2^{1128367255842} is an apocalyptic number.

1128367255842 is an abundant number, since it is smaller than the sum of its proper divisors (1416540659358).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1128367255842 is a wasteful number, since it uses less digits than its factorization.

1128367255842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 311876047 (or 311876041 counting only the distinct ones).

The product of its digits is 6451200, while the sum is 54.

The spelling of 1128367255842 in words is "one trillion, one hundred twenty-eight billion, three hundred sixty-seven million, two hundred fifty-five thousand, eight hundred forty-two".