7973533994 has 16 divisors (see below), whose sum is σ = 12414345216. Its totient is φ = 3836840400.

The previous prime is 7973533949. The next prime is 7973534017. The reversal of 7973533994 is 4993353797.

It is a happy 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 7 ways as a sum of consecutive naturals, for example, 344042 + ... + 366485.

It is an arithmetic number, because the mean of its divisors is an integer number (775896576).

Almost surely, 2^7973533994 is an apocalyptic number.

7973533994 is a deficient number, since it is larger than the sum of its proper divisors (4440811222).

7973533994 is a wasteful number, since it uses less digits than its factorization.

7973533994 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 710741.

The product of its digits is 19289340, while the sum is 59.

The square root of 7973533994 is about 89294.6470624079. The cubic root of 7973533994 is about 1997.7920629039.

The spelling of 7973533994 in words is "seven billion, nine hundred seventy-three million, five hundred thirty-three thousand, nine hundred ninety-four".