2687069888 has 56 divisors (see below), whose sum is σ = 5415460848. Its totient is φ = 1322663936.

The previous prime is 2687069867. The next prime is 2687069893. The reversal of 2687069888 is 8889607862.

It is a self number, because there is not a number n which added to its sum of digits gives 2687069888.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1874420 + ... + 1875852.

It is an arithmetic number, because the mean of its divisors is an integer number (96704658).

Almost surely, 2^2687069888 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2687069888, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2707730424).

2687069888 is an abundant number, since it is smaller than the sum of its proper divisors (2728390960).

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

2687069888 is a wasteful number, since it uses less digits than its factorization.

2687069888 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1881 (or 1871 counting only the distinct ones).

The product of its (nonzero) digits is 18579456, while the sum is 62.

The square root of 2687069888 is about 51836.9548488335. The cubic root of 2687069888 is about 1390.2502677227.

The spelling of 2687069888 in words is "two billion, six hundred eighty-seven million, sixty-nine thousand, eight hundred eighty-eight".