7993605040 has 40 divisors (see below), whose sum is σ = 18589078080. Its totient is φ = 3196763136.

The previous prime is 7993604999. The next prime is 7993605079. The reversal of 7993605040 is 405063997.

It is a tau number, because it is divible by the number of its divisors (40).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 557481 + ... + 571639.

It is an arithmetic number, because the mean of its divisors is an integer number (464726952).

Almost surely, 2^7993605040 is an apocalyptic number.

It is an amenable number.

7993605040 is an abundant number, since it is smaller than the sum of its proper divisors (10595473040).

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

7993605040 is a wasteful number, since it uses less digits than its factorization.

7993605040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21229 (or 21223 counting only the distinct ones).

The product of its (nonzero) digits is 204120, while the sum is 43.

The square root of 7993605040 is about 89406.9630397991. The cubic root of 7993605040 is about 1999.4669446053.

The spelling of 7993605040 in words is "seven billion, nine hundred ninety-three million, six hundred five thousand, forty".