7117885440 has 468 divisors, whose sum is σ = 26144983956. Its totient is φ = 1790705664.

The previous prime is 7117885427. The next prime is 7117885457. The reversal of 7117885440 is 445887117.

It can be written as a sum of positive squares in 2 ways, for example, as 3295678464 + 3822206976 = 57408^2 + 61824^2 .

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 97505244 + ... + 97505316.

Almost surely, 2^7117885440 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 7117885440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13072491978).

7117885440 is an abundant number, since it is smaller than the sum of its proper divisors (19027098516).

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

7117885440 is a wasteful number, since it uses less digits than its factorization.

7117885440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 154 (or 106 counting only the distinct ones).

The product of its (nonzero) digits is 250880, while the sum is 45.

The square root of 7117885440 is about 84367.5615387810. The cubic root of 7117885440 is about 1923.6098753298.

The spelling of 7117885440 in words is "seven billion, one hundred seventeen million, eight hundred eighty-five thousand, four hundred forty".