2688145280 has 32 divisors (see below), whose sum is σ = 6426348840. Its totient is φ = 1075257856.

The previous prime is 2688145267. The next prime is 2688145303. The reversal of 2688145280 is 825418862.

It is a tau number, because it is divible by the number of its divisors (32).

It is a super-2 number, since 2×2688145280² = 14452250092772556800, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2099474 + ... + 2100753.

Almost surely, 2^2688145280 is an apocalyptic number.

2688145280 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2688145280 is an abundant number, since it is smaller than the sum of its proper divisors (3738203560).

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

2688145280 is an equidigital number, since it uses as much as digits as its factorization.

2688145280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4200246 (or 4200234 counting only the distinct ones).

The product of its (nonzero) digits is 245760, while the sum is 44.

The square root of 2688145280 is about 51847.3266427499. The cubic root of 2688145280 is about 1390.4357069652.

The spelling of 2688145280 in words is "two billion, six hundred eighty-eight million, one hundred forty-five thousand, two hundred eighty".