2176872768 has 84 divisors (see below), whose sum is σ = 7130999200. Its totient is φ = 621962496.

The previous prime is 2176872751. The next prime is 2176872773. The reversal of 2176872768 is 8672786712.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (84).

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 265918 + ... + 273981.

Almost surely, 2^2176872768 is an apocalyptic number.

2176872768 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

2176872768 is an abundant number, since it is smaller than the sum of its proper divisors (4954126432).

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

2176872768 is a wasteful number, since it uses less digits than its factorization.

2176872768 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 539924 (or 539911 counting only the distinct ones).

The product of its digits is 3161088, while the sum is 54.

The square root of 2176872768 is about 46656.9691257373. The cubic root of 2176872768 is about 1296.0179467108.

The spelling of 2176872768 in words is "two billion, one hundred seventy-six million, eight hundred seventy-two thousand, seven hundred sixty-eight".