7998432416 has 96 divisors (see below), whose sum is σ = 17178594048. Its totient is φ = 3643960320.

The previous prime is 7998432311. The next prime is 7998432427. The reversal of 7998432416 is 6142348997.

It is a super-2 number, since 2×7998432416² (a number of 21 digits) contains 22 as substring.

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, 17275001 + ... + 17275463.

It is an arithmetic number, because the mean of its divisors is an integer number (178943688).

Almost surely, 2^7998432416 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 7998432416, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8589297024).

7998432416 is an abundant number, since it is smaller than the sum of its proper divisors (9180161632).

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

7998432416 is a wasteful number, since it uses less digits than its factorization.

7998432416 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 934 (or 926 counting only the distinct ones).

The product of its digits is 2612736, while the sum is 53.

The square root of 7998432416 is about 89433.9556097124. The cubic root of 7998432416 is about 1999.8693594667.

The spelling of 7998432416 in words is "seven billion, nine hundred ninety-eight million, four hundred thirty-two thousand, four hundred sixteen".