8078557782 has 16 divisors (see below), whose sum is σ = 16714257840. Its totient is φ = 2599995552.

The previous prime is 8078557771. The next prime is 8078557787. The reversal of 8078557782 is 2877558708.

It is a super-2 number, since 2×8078557782² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8078557787) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23214073 + ... + 23214420.

It is an arithmetic number, because the mean of its divisors is an integer number (1044641115).

Almost surely, 2^8078557782 is an apocalyptic number.

8078557782 is an abundant number, since it is smaller than the sum of its proper divisors (8635700058).

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

8078557782 is a wasteful number, since it uses less digits than its factorization.

8078557782 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46428527.

The product of its (nonzero) digits is 8780800, while the sum is 57.

The square root of 8078557782 is about 89880.7976266344. The cubic root of 8078557782 is about 2006.5251697608.

The spelling of 8078557782 in words is "eight billion, seventy-eight million, five hundred fifty-seven thousand, seven hundred eighty-two".