7944983994 has 8 divisors (see below), whose sum is σ = 15889968000. Its totient is φ = 2648327996.

The previous prime is 7944983957. The next prime is 7944984041. The reversal of 7944983994 is 4993894497.

It is a sphenic number, since it is the product of 3 distinct primes.

7944983994 is an admirable number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 662081994 + ... + 662082005.

It is an arithmetic number, because the mean of its divisors is an integer number (1986246000).

Almost surely, 2^7944983994 is an apocalyptic number.

7944983994 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

7944983994 is a wasteful number, since it uses less digits than its factorization.

7944983994 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1324164004.

The product of its digits is 70543872, while the sum is 66.

The square root of 7944983994 is about 89134.6396974824. The cubic root of 7944983994 is about 1995.4047829093.

The spelling of 7944983994 in words is "seven billion, nine hundred forty-four million, nine hundred eighty-three thousand, nine hundred ninety-four".