1027638886688 has 18 divisors (see below), whose sum is σ = 2023175348019. Its totient is φ = 513816576096.

The previous prime is 1027638886613. The next prime is 1027638886699. The reversal of 1027638886688 is 8866888367201.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It can be written as a sum of positive squares in only one way, i.e., 513819443344 + 513819443344 = 716812^2 + 716812^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=716812.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 5644895 + ... + 5824097.

Almost surely, 2^{1027638886688} is an apocalyptic number.

It is an amenable number.

1027638886688 is a deficient number, since it is larger than the sum of its proper divisors (995536461331).

1027638886688 is an frugal number, since it uses more digits than its factorization.

1027638886688 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 358416 (or 179205 counting only the distinct ones).

The product of its (nonzero) digits is 297271296, while the sum is 71.

The spelling of 1027638886688 in words is "one trillion, twenty-seven billion, six hundred thirty-eight million, eight hundred eighty-six thousand, six hundred eighty-eight".