2669771327688 has 40 divisors (see below), whose sum is σ = 7477831729830. Its totient is φ = 889923775680.

The previous prime is 2669771327659. The next prime is 2669771327749. The reversal of 2669771327688 is 8867231779662.

2669771327688 is a `hidden beast` number, since 266 + 9 + 7 + 7 + 13 + 276 + 88 = 666.

It can be written as a sum of positive squares in only one way, i.e., 1786280364324 + 883490963364 = 1336518^2 + 939942^2 .

It is a Harshad number since it is a multiple of its sum of digits (72).

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 9 ways as a sum of consecutive naturals, for example, 2060008093 + ... + 2060009388.

Almost surely, 2^{2669771327688} is an apocalyptic number.

It is an amenable number.

2669771327688 is an abundant number, since it is smaller than the sum of its proper divisors (4808060402142).

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

2669771327688 is a wasteful number, since it uses less digits than its factorization.

2669771327688 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4120017499 (or 4120017486 counting only the distinct ones).

The product of its digits is 512096256, while the sum is 72.

The spelling of 2669771327688 in words is "two trillion, six hundred sixty-nine billion, seven hundred seventy-one million, three hundred twenty-seven thousand, six hundred eighty-eight".