7993378936 has 8 divisors (see below), whose sum is σ = 14987585520. Its totient is φ = 3996689464.

The previous prime is 7993378933. The next prime is 7993378957. The reversal of 7993378936 is 6398733997.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7993378931) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 499586176 + ... + 499586191.

It is an arithmetic number, because the mean of its divisors is an integer number (1873448190).

Almost surely, 2^7993378936 is an apocalyptic number.

It is an amenable number.

7993378936 is a deficient number, since it is larger than the sum of its proper divisors (6994206584).

7993378936 is a wasteful number, since it uses less digits than its factorization.

7993378936 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 999172373 (or 999172369 counting only the distinct ones).

The product of its digits is 46294416, while the sum is 64.

The square root of 7993378936 is about 89405.6985655836. The cubic root of 7993378936 is about 1999.4480923797.

The spelling of 7993378936 in words is "seven billion, nine hundred ninety-three million, three hundred seventy-eight thousand, nine hundred thirty-six".