7800081064 has 16 divisors (see below), whose sum is σ = 14626271520. Its totient is φ = 3899742000.

The previous prime is 7800081061. The next prime is 7800081137. The reversal of 7800081064 is 4601800087.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (7800081061) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 106189 + ... + 163939.

It is an arithmetic number, because the mean of its divisors is an integer number (914141970).

Almost surely, 2^7800081064 is an apocalyptic number.

It is an amenable number.

7800081064 is a deficient number, since it is larger than the sum of its proper divisors (6826190456).

7800081064 is a wasteful number, since it uses less digits than its factorization.

7800081064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74640 (or 74636 counting only the distinct ones).

The product of its (nonzero) digits is 10752, while the sum is 34.

The square root of 7800081064 is about 88318.0675966135. The cubic root of 7800081064 is about 1983.1993529781.

The spelling of 7800081064 in words is "seven billion, eight hundred million, eighty-one thousand, sixty-four".