2688264620 has 48 divisors (see below), whose sum is σ = 5848113600. Its totient is φ = 1036788480.

The previous prime is 2688264611. The next prime is 2688264629. The reversal of 2688264620 is 264628862.

It is an interprime number because it is at equal distance from previous prime (2688264611) and next prime (2688264629).

It is not an unprimeable number, because it can be changed into a prime (2688264629) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 478025 + ... + 483615.

It is an arithmetic number, because the mean of its divisors is an integer number (121835700).

Almost surely, 2^2688264620 is an apocalyptic number.

2688264620 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 2688264620, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2924056800).

2688264620 is an abundant number, since it is smaller than the sum of its proper divisors (3159848980).

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

2688264620 is a wasteful number, since it uses less digits than its factorization.

2688264620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6458 (or 6456 counting only the distinct ones).

The product of its (nonzero) digits is 442368, while the sum is 44.

The square root of 2688264620 is about 51848.4775089877. The cubic root of 2688264620 is about 1390.4562827556.

The spelling of 2688264620 in words is "two billion, six hundred eighty-eight million, two hundred sixty-four thousand, six hundred twenty".