2128480291 has 8 divisors (see below), whose sum is σ = 2575640160. Its totient is φ = 1717093248.

The previous prime is 2128480261. The next prime is 2128480309. The reversal of 2128480291 is 1920848212.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2128480291 - 2⁷ = 2128480163 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2128480291.

It is not an unprimeable number, because it can be changed into a prime (2128480231) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8943076 + ... + 8943313.

It is an arithmetic number, because the mean of its divisors is an integer number (321955020).

Almost surely, 2^2128480291 is an apocalyptic number.

2128480291 is a deficient number, since it is larger than the sum of its proper divisors (447159869).

2128480291 is a wasteful number, since it uses less digits than its factorization.

2128480291 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17886413.

The product of its (nonzero) digits is 18432, while the sum is 37.

The square root of 2128480291 is about 46135.4558989071. The cubic root of 2128480291 is about 1286.3422798165.

The spelling of 2128480291 in words is "two billion, one hundred twenty-eight million, four hundred eighty thousand, two hundred ninety-one".