7726981080 has 256 divisors, whose sum is σ = 28718484480. Its totient is φ = 1619564544.

The previous prime is 7726981061. The next prime is 7726981121. The reversal of 7726981080 is 801896277.

It is a super-2 number, since 2×7726981080² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1712187 + ... + 1716693.

It is an arithmetic number, because the mean of its divisors is an integer number (112181580).

Almost surely, 2^7726981080 is an apocalyptic number.

7726981080 is a gapful number since it is divisible by the number (70) 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 7726981080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14359242240).

7726981080 is an abundant number, since it is smaller than the sum of its proper divisors (20991503400).

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

7726981080 is a wasteful number, since it uses less digits than its factorization.

7726981080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4698 (or 4694 counting only the distinct ones).

The product of its (nonzero) digits is 338688, while the sum is 48.

The square root of 7726981080 is about 87903.2484041403. The cubic root of 7726981080 is about 1976.9845846174.

The spelling of 7726981080 in words is "seven billion, seven hundred twenty-six million, nine hundred eighty-one thousand, eighty".