2685678900 has 72 divisors (see below), whose sum is σ = 7784855904. Its totient is φ = 714864000.

The previous prime is 2685678889. The next prime is 2685678901. The reversal of 2685678900 is 98765862.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2685678901) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 160950 + ... + 176850.

Almost surely, 2^2685678900 is an apocalyptic number.

2685678900 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2685678900, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3892427952).

2685678900 is an abundant number, since it is smaller than the sum of its proper divisors (5099177004).

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

2685678900 is a wasteful number, since it uses less digits than its factorization.

2685678900 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16481 (or 16474 counting only the distinct ones).

The product of its (nonzero) digits is 1451520, while the sum is 51.

The square root of 2685678900 is about 51823.5361587764. The cubic root of 2685678900 is about 1390.0103341019.

The spelling of 2685678900 in words is "two billion, six hundred eighty-five million, six hundred seventy-eight thousand, nine hundred".