1288547638055 has 4 divisors (see below), whose sum is σ = 1546257165672. Its totient is φ = 1030838110440.

The previous prime is 1288547638019. The next prime is 1288547638067. The reversal of 1288547638055 is 5508367458821.

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

It is not a de Polignac number, because 1288547638055 - 2²² = 1288543443751 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 128854763801 + ... + 128854763810.

It is an arithmetic number, because the mean of its divisors is an integer number (386564291418).

Almost surely, 2^{1288547638055} is an apocalyptic number.

1288547638055 is a deficient number, since it is larger than the sum of its proper divisors (257709527617).

1288547638055 is an equidigital number, since it uses as much as digits as its factorization.

1288547638055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 257709527616.

The product of its (nonzero) digits is 64512000, while the sum is 62.

The spelling of 1288547638055 in words is "one trillion, two hundred eighty-eight billion, five hundred forty-seven million, six hundred thirty-eight thousand, fifty-five".