7841745756 has 120 divisors (see below), whose sum is σ = 22138980864. Its totient is φ = 2406049920.

The previous prime is 7841745739. The next prime is 7841745757. The reversal of 7841745756 is 6575471487.

It is a super-2 number, since 2×7841745756² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7841745757) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 1610766 + ... + 1615626.

Almost surely, 2^7841745756 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 7841745756, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11069490432).

7841745756 is an abundant number, since it is smaller than the sum of its proper divisors (14297235108).

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

7841745756 is a wasteful number, since it uses less digits than its factorization.

7841745756 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5273 (or 5262 counting only the distinct ones).

The product of its digits is 6585600, while the sum is 54.

The square root of 7841745756 is about 88553.6320881306. The cubic root of 7841745756 is about 1986.7242181252.

The spelling of 7841745756 in words is "seven billion, eight hundred forty-one million, seven hundred forty-five thousand, seven hundred fifty-six".