1268127855 has 24 divisors (see below), whose sum is σ = 2199283632. Its totient is φ = 675967104.

The previous prime is 1268127797. The next prime is 1268127857. The reversal of 1268127855 is 5587218621.

1268127855 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 1268127855 - 2¹⁰ = 1268126831 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 1268127855.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1268127857) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 89572 + ... + 102758.

It is an arithmetic number, because the mean of its divisors is an integer number (91636818).

Almost surely, 2^1268127855 is an apocalyptic number.

1268127855 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1268127855 is a deficient number, since it is larger than the sum of its proper divisors (931155777).

1268127855 is a wasteful number, since it uses less digits than its factorization.

1268127855 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15335 (or 15332 counting only the distinct ones).

The product of its digits is 268800, while the sum is 45.

The square root of 1268127855 is about 35610.7828473343. The cubic root of 1268127855 is about 1082.3997435894.

The spelling of 1268127855 in words is "one billion, two hundred sixty-eight million, one hundred twenty-seven thousand, eight hundred fifty-five".