7117323840 has 672 divisors, whose sum is σ = 28301045760. Its totient is φ = 1625702400.

The previous prime is 7117323823. The next prime is 7117323977. The reversal of 7117323840 is 483237117.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 7117323795 and 7117323804.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 56041857 + ... + 56041983.

Almost surely, 2^7117323840 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 7117323840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14150522880).

7117323840 is an abundant number, since it is smaller than the sum of its proper divisors (21183721920).

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

7117323840 is a wasteful number, since it uses less digits than its factorization.

7117323840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 251 (or 238 counting only the distinct ones).

The product of its (nonzero) digits is 28224, while the sum is 36.

The square root of 7117323840 is about 84364.2331797071. The cubic root of 7117323840 is about 1923.5592831641.

The spelling of 7117323840 in words is "seven billion, one hundred seventeen million, three hundred twenty-three thousand, eight hundred forty".