7326781056 has 576 divisors, whose sum is σ = 26121139200. Its totient is φ = 1962455040.

The previous prime is 7326781037. The next prime is 7326781061. The reversal of 7326781056 is 6501876237.

It is a tau number, because it is divible by the number of its divisors (576).

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 92744025 + ... + 92744103.

It is an arithmetic number, because the mean of its divisors is an integer number (45349200).

Almost surely, 2^7326781056 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 7326781056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13060569600).

7326781056 is an abundant number, since it is smaller than the sum of its proper divisors (18794358144).

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

7326781056 is a wasteful number, since it uses less digits than its factorization.

7326781056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 197 (or 175 counting only the distinct ones).

The product of its (nonzero) digits is 423360, while the sum is 45.

The square root of 7326781056 is about 85596.6182509566. The cubic root of 7326781056 is about 1942.2467553959.

The spelling of 7326781056 in words is "seven billion, three hundred twenty-six million, seven hundred eighty-one thousand, fifty-six".