7993418136 has 64 divisors (see below), whose sum is σ = 22389454080. Its totient is φ = 2356778880.

The previous prime is 7993418051. The next prime is 7993418141. The reversal of 7993418136 is 6318143997.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 399396 + ... + 418931.

It is an arithmetic number, because the mean of its divisors is an integer number (349835220).

Almost surely, 2^7993418136 is an apocalyptic number.

It is an amenable number.

7993418136 is an abundant number, since it is smaller than the sum of its proper divisors (14396035944).

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

7993418136 is a wasteful number, since it uses less digits than its factorization.

7993418136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 818384 (or 818380 counting only the distinct ones).

The product of its digits is 979776, while the sum is 51.

The square root of 7993418136 is about 89405.9177907145. The cubic root of 7993418136 is about 1999.4513608446.

The spelling of 7993418136 in words is "seven billion, nine hundred ninety-three million, four hundred eighteen thousand, one hundred thirty-six".