7996606978 has 32 divisors (see below), whose sum is σ = 12412051200. Its totient is φ = 3861853824.

The previous prime is 7996606973. The next prime is 7996606979. The reversal of 7996606978 is 8796066997.

It is not an unprimeable number, because it can be changed into a prime (7996606973) 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 15 ways as a sum of consecutive naturals, for example, 2303428 + ... + 2306896.

It is an arithmetic number, because the mean of its divisors is an integer number (387876600).

Almost surely, 2^7996606978 is an apocalyptic number.

7996606978 is a deficient number, since it is larger than the sum of its proper divisors (4415444222).

7996606978 is a wasteful number, since it uses less digits than its factorization.

7996606978 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3834.

The product of its (nonzero) digits is 61725888, while the sum is 67.

The square root of 7996606978 is about 89423.7495187939. The cubic root of 7996606978 is about 1999.7172081829.

It can be divided in two parts, 7996606 and 978, that added together give a square (7997584 = 2828²).

The spelling of 7996606978 in words is "seven billion, nine hundred ninety-six million, six hundred six thousand, nine hundred seventy-eight".