7999991104 has 112 divisors (see below), whose sum is σ = 19391571072. Its totient is φ = 3196403712.

The previous prime is 7999991093. The next prime is 7999991113. The reversal of 7999991104 is 4011999997.

It is a tau number, because it is divible by the number of its divisors (112).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 810004 + ... + 819820.

Almost surely, 2^7999991104 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7999991104, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9695785536).

7999991104 is an abundant number, since it is smaller than the sum of its proper divisors (11391579968).

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

7999991104 is a wasteful number, since it uses less digits than its factorization.

7999991104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9960 (or 9950 counting only the distinct ones).

The product of its (nonzero) digits is 1653372, while the sum is 58.

The square root of 7999991104 is about 89442.6693698259. The cubic root of 7999991104 is about 1999.9992586664. Note that the first 3 decimals are identical.

The spelling of 7999991104 in words is "seven billion, nine hundred ninety-nine million, nine hundred ninety-one thousand, one hundred four".