2176875649 has 27 divisors (see below), whose sum is σ = 2447871867. Its totient is φ = 1934959104.

The previous prime is 2176875643. The next prime is 2176875667. The reversal of 2176875649 is 9465786712.

The square root of 2176875649 is 46657.

It is a perfect power (a square), and thus also a powerful number.

2176875649 is nontrivially palindromic in base 6.

It can be written as a sum of positive squares in 13 ways, for example, as 1059177025 + 1117698624 = 32545^2 + 33432^2 .

It is not a de Polignac number, because 2176875649 - 2⁹ = 2176875137 is a prime.

It is a Duffinian number.

Its product of digits (5080320) is a multiple of the sum of its prime divisors (147).

It is a self number, because there is not a number n which added to its sum of digits gives 2176875649.

It is not an unprimeable number, because it can be changed into a prime (2176875643) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 22441969 + ... + 22442065.

It is an arithmetic number, because the mean of its divisors is an integer number (90661921).

Almost surely, 2^2176875649 is an apocalyptic number.

2176875649 is the 46657-th square number.

2176875649 is the 23329-th centered octagonal number.

It is an amenable number.

2176875649 is a deficient number, since it is larger than the sum of its proper divisors (270996218).

2176875649 is an frugal number, since it uses more digits than its factorization.

2176875649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 294 (or 147 counting only the distinct ones).

The product of its digits is 5080320, while the sum is 55.

The cubic root of 2176875649 is about 1296.0185184524.

The spelling of 2176875649 in words is "two billion, one hundred seventy-six million, eight hundred seventy-five thousand, six hundred forty-nine".