2678785848880 has 40 divisors (see below), whose sum is σ = 6313494606912. Its totient is φ = 1056836058624.

The previous prime is 2678785848769. The next prime is 2678785848887. The reversal of 2678785848880 is 888485878762.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (40).

It is a self number, because there is not a number n which added to its sum of digits gives 2678785848880.

It is not an unprimeable number, because it can be changed into a prime (2678785848887) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 229342264 + ... + 229353943.

Almost surely, 2^{2678785848880} is an apocalyptic number.

2678785848880 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2678785848880 is an abundant number, since it is smaller than the sum of its proper divisors (3634708758032).

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

2678785848880 is a wasteful number, since it uses less digits than its factorization.

2678785848880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 458696293 (or 458696287 counting only the distinct ones).

The product of its (nonzero) digits is 3082813440, while the sum is 79.

The spelling of 2678785848880 in words is "two trillion, six hundred seventy-eight billion, seven hundred eighty-five million, eight hundred forty-eight thousand, eight hundred eighty".