2522678688 has 144 divisors (see below), whose sum is σ = 7816858560. Its totient is φ = 791350272.

The previous prime is 2522678687. The next prime is 2522678737. The reversal of 2522678688 is 8868762252.

It is a tau number, because it is divible by the number of its divisors (144).

It is a Harshad number since it is a multiple of its sum of digits (54).

It is not an unprimeable number, because it can be changed into a prime (2522678687) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 244645 + ... + 254747.

It is an arithmetic number, because the mean of its divisors is an integer number (54283740).

Almost surely, 2^2522678688 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 2522678688, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3908429280).

2522678688 is an abundant number, since it is smaller than the sum of its proper divisors (5294179872).

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

2522678688 is a wasteful number, since it uses less digits than its factorization.

2522678688 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10156 (or 10125 counting only the distinct ones).

The product of its digits is 5160960, while the sum is 54.

The square root of 2522678688 is about 50226.2748768013. The cubic root of 2522678688 is about 1361.3004228148.

The spelling of 2522678688 in words is "two billion, five hundred twenty-two million, six hundred seventy-eight thousand, six hundred eighty-eight".