2618426656 has 48 divisors (see below), whose sum is σ = 5465214720. Its totient is φ = 1232720640.

The previous prime is 2618426579. The next prime is 2618426659. The reversal of 2618426656 is 6566248162.

It is not an unprimeable number, because it can be changed into a prime (2618426659) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1035 + ... + 72373.

It is an arithmetic number, because the mean of its divisors is an integer number (113858640).

Almost surely, 2^2618426656 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 2618426656, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2732607360).

2618426656 is an abundant number, since it is smaller than the sum of its proper divisors (2846788064).

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

2618426656 is a wasteful number, since it uses less digits than its factorization.

2618426656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71417 (or 71409 counting only the distinct ones).

The product of its digits is 829440, while the sum is 46.

The square root of 2618426656 is about 51170.5643510016. The cubic root of 2618426656 is about 1378.3096744416.

The spelling of 2618426656 in words is "two billion, six hundred eighteen million, four hundred twenty-six thousand, six hundred fifty-six".