8256768744 has 128 divisors (see below), whose sum is σ = 25503897600. Its totient is φ = 2174480640.

The previous prime is 8256768721. The next prime is 8256768761. The reversal of 8256768744 is 4478676528.

It is a Harshad number since it is a multiple of its sum of digits (57).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 83149 + ... + 153059.

It is an arithmetic number, because the mean of its divisors is an integer number (199249200).

Almost surely, 2^8256768744 is an apocalyptic number.

8256768744 is a gapful number since it is divisible by the number (84) 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 8256768744, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12751948800).

8256768744 is an abundant number, since it is smaller than the sum of its proper divisors (17247128856).

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

8256768744 is a wasteful number, since it uses less digits than its factorization.

8256768744 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69983 (or 69979 counting only the distinct ones).

The product of its digits is 18063360, while the sum is 57.

The square root of 8256768744 is about 90866.7636927826. The cubic root of 8256768744 is about 2021.1724677176.

The spelling of 8256768744 in words is "eight billion, two hundred fifty-six million, seven hundred sixty-eight thousand, seven hundred forty-four".