7998331172 has 48 divisors (see below), whose sum is σ = 15185208192. Its totient is φ = 3664362240.

The previous prime is 7998331171. The next prime is 7998331183. The reversal of 7998331172 is 2711338997.

It is a self number, because there is not a number n which added to its sum of digits gives 7998331172.

It is not an unprimeable number, because it can be changed into a prime (7998331171) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4484993 + ... + 4486775.

It is an arithmetic number, because the mean of its divisors is an integer number (316358504).

Almost surely, 2^7998331172 is an apocalyptic number.

It is an amenable number.

7998331172 is a deficient number, since it is larger than the sum of its proper divisors (7186877020).

7998331172 is a wasteful number, since it uses less digits than its factorization.

7998331172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2388 (or 2386 counting only the distinct ones).

The product of its digits is 571536, while the sum is 50.

The square root of 7998331172 is about 89433.3895812968. The cubic root of 7998331172 is about 1999.8609213288.

The spelling of 7998331172 in words is "seven billion, nine hundred ninety-eight million, three hundred thirty-one thousand, one hundred seventy-two".