7397917128 has 96 divisors (see below), whose sum is σ = 23637020160. Its totient is φ = 2045502720.

The previous prime is 7397917117. The next prime is 7397917141. The reversal of 7397917128 is 8217197937.

It is a nude number because it is divisible by every one of its digits.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 221125 + ... + 252372.

It is an arithmetic number, because the mean of its divisors is an integer number (246218960).

Almost surely, 2^7397917128 is an apocalyptic number.

It is an amenable number.

7397917128 is an abundant number, since it is smaller than the sum of its proper divisors (16239103032).

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

7397917128 is a wasteful number, since it uses less digits than its factorization.

7397917128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 473547 (or 473540 counting only the distinct ones).

The product of its digits is 1333584, while the sum is 54.

The square root of 7397917128 is about 86011.1453708181. The cubic root of 7397917128 is about 1948.5123106691.

The spelling of 7397917128 in words is "seven billion, three hundred ninety-seven million, nine hundred seventeen thousand, one hundred twenty-eight".