7994672672 has 192 divisors, whose sum is σ = 19710190080. Its totient is φ = 3116703744.

The previous prime is 7994672507. The next prime is 7994672681. The reversal of 7994672672 is 2762764997.

It is a super-2 number, since 2×7994672672² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 10906418 + ... + 10907150.

It is an arithmetic number, because the mean of its divisors is an integer number (102657240).

Almost surely, 2^7994672672 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 7994672672, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9855095040).

7994672672 is an abundant number, since it is smaller than the sum of its proper divisors (11715517408).

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

7994672672 is a wasteful number, since it uses less digits than its factorization.

7994672672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 875 (or 867 counting only the distinct ones).

The product of its digits is 16003008, while the sum is 59.

The square root of 7994672672 is about 89412.9334716181. The cubic root of 7994672672 is about 1999.5559574204. Note that the first 3 decimals are identical.

The spelling of 7994672672 in words is "seven billion, nine hundred ninety-four million, six hundred seventy-two thousand, six hundred seventy-two".