2688862320 has 60 divisors (see below), whose sum is σ = 9030098376. Its totient is φ = 717029760.

The previous prime is 2688862289. The next prime is 2688862321. The reversal of 2688862320 is 232688862.

2688862320 is a `hidden beast` number, since 268 + 8 + 8 + 62 + 320 = 666.

It is a tau number, because it is divible by the number of its divisors (60).

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2688862321) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1866546 + ... + 1867985.

Almost surely, 2^2688862320 is an apocalyptic number.

2688862320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2688862320 is an abundant number, since it is smaller than the sum of its proper divisors (6341236056).

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

2688862320 is a wasteful number, since it uses less digits than its factorization.

2688862320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3734550 (or 3734541 counting only the distinct ones).

The product of its (nonzero) digits is 442368, while the sum is 45.

The square root of 2688862320 is about 51854.2410994511. The cubic root of 2688862320 is about 1390.5593249597.

The spelling of 2688862320 in words is "two billion, six hundred eighty-eight million, eight hundred sixty-two thousand, three hundred twenty".