2685905280 has 96 divisors (see below), whose sum is σ = 9274786560. Its totient is φ = 716239872.

The previous prime is 2685905263. The next prime is 2685905311. The reversal of 2685905280 is 825095862.

2685905280 is a `hidden beast` number, since 2 + 6 + 8 + 590 + 52 + 8 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (96).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 227392 + ... + 238911.

It is an arithmetic number, because the mean of its divisors is an integer number (96612360).

Almost surely, 2^2685905280 is an apocalyptic number.

2685905280 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2685905280 is an abundant number, since it is smaller than the sum of its proper divisors (6588881280).

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

2685905280 is a wasteful number, since it uses less digits than its factorization.

2685905280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 466328 (or 466313 counting only the distinct ones).

The product of its (nonzero) digits is 345600, while the sum is 45.

The square root of 2685905280 is about 51825.7202554870. The cubic root of 2685905280 is about 1390.0493883733.

The spelling of 2685905280 in words is "two billion, six hundred eighty-five million, nine hundred five thousand, two hundred eighty".