2688671084465 has 8 divisors (see below), whose sum is σ = 3226547701440. Its totient is φ = 2150841934192.

The previous prime is 2688671084461. The next prime is 2688671084513. The reversal of 2688671084465 is 5644801768862.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2688671084465 - 2² = 2688671084461 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2688671084461) 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, 11741939 + ... + 11968728.

It is an arithmetic number, because the mean of its divisors is an integer number (403318462680).

Almost surely, 2^{2688671084465} is an apocalyptic number.

It is an amenable number.

2688671084465 is a deficient number, since it is larger than the sum of its proper divisors (537876616975).

2688671084465 is a wasteful number, since it uses less digits than its factorization.

2688671084465 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23733351.

The product of its (nonzero) digits is 123863040, while the sum is 65.

The spelling of 2688671084465 in words is "two trillion, six hundred eighty-eight billion, six hundred seventy-one million, eighty-four thousand, four hundred sixty-five".