2686440000 has 280 divisors, whose sum is σ = 9052202368. Its totient is φ = 702720000.

The previous prime is 2686439999. The next prime is 2686440049. The reversal of 2686440000 is 446862.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a self number, because there is not a number n which added to its sum of digits gives 2686440000.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 7319817 + ... + 7320183.

Almost surely, 2^2686440000 is an apocalyptic number.

2686440000 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 2686440000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4526101184).

2686440000 is an abundant number, since it is smaller than the sum of its proper divisors (6365762368).

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

2686440000 is an equidigital number, since it uses as much as digits as its factorization.

2686440000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 463 (or 438 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 30.

The square root of 2686440000 is about 51830.8788272011. The cubic root of 2686440000 is about 1390.1416276510.

Adding to 2686440000 its reverse (446862), we get a palindrome (2686886862).

The spelling of 2686440000 in words is "two billion, six hundred eighty-six million, four hundred forty thousand".