7998268416 has 88 divisors (see below), whose sum is σ = 21588808320. Its totient is φ = 2632261632.

The previous prime is 7998268391. The next prime is 7998268417. The reversal of 7998268416 is 6148628997.

It is a self number, because there is not a number n which added to its sum of digits gives 7998268416.

It is not an unprimeable number, because it can be changed into a prime (7998268417) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 226210 + ... + 259166.

Almost surely, 2^7998268416 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 7998268416, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10794404160).

7998268416 is an abundant number, since it is smaller than the sum of its proper divisors (13590539904).

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

7998268416 is a wasteful number, since it uses less digits than its factorization.

7998268416 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33059 (or 33041 counting only the distinct ones).

The product of its digits is 10450944, while the sum is 60.

The square root of 7998268416 is about 89433.0387273070. The cubic root of 7998268416 is about 1999.8556909210.

The spelling of 7998268416 in words is "seven billion, nine hundred ninety-eight million, two hundred sixty-eight thousand, four hundred sixteen".