2678267808 has 96 divisors (see below), whose sum is σ = 7830748800. Its totient is φ = 890569728.

The previous prime is 2678267807. The next prime is 2678267819. The reversal of 2678267808 is 8087628762.

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 (54).

It is not an unprimeable number, because it can be changed into a prime (2678267807) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 370533 + ... + 377691.

It is an arithmetic number, because the mean of its divisors is an integer number (81570300).

Almost surely, 2^2678267808 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2678267808, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3915374400).

2678267808 is an abundant number, since it is smaller than the sum of its proper divisors (5152480992).

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

2678267808 is a wasteful number, since it uses less digits than its factorization.

2678267808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7611 (or 7597 counting only the distinct ones).

The product of its (nonzero) digits is 3612672, while the sum is 54.

The square root of 2678267808 is about 51751.9836141572. The cubic root of 2678267808 is about 1388.7305851057.

The spelling of 2678267808 in words is "two billion, six hundred seventy-eight million, two hundred sixty-seven thousand, eight hundred eight".