2659617896 has 48 divisors (see below), whose sum is σ = 5416082700. Its totient is φ = 1224360384.

The previous prime is 2659617893. The next prime is 2659617913. The reversal of 2659617896 is 6987169562.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It can be written as a sum of positive squares in 6 ways, for example, as 548215396 + 2111402500 = 23414^2 + 45950^2 .

It is not an unprimeable number, because it can be changed into a prime (2659617893) 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, 6836870 + ... + 6837258.

Almost surely, 2^2659617896 is an apocalyptic number.

2659617896 is a gapful number since it is divisible by the number (26) 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 2659617896, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2708041350).

2659617896 is an abundant number, since it is smaller than the sum of its proper divisors (2756464804).

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

2659617896 is an frugal number, since it uses more digits than its factorization.

2659617896 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 823 (or 404 counting only the distinct ones).

The product of its digits is 9797760, while the sum is 59.

The square root of 2659617896 is about 51571.4833604774. The cubic root of 2659617896 is about 1385.4996344092.

The spelling of 2659617896 in words is "two billion, six hundred fifty-nine million, six hundred seventeen thousand, eight hundred ninety-six".