7681859352 has 72 divisors (see below), whose sum is σ = 21257554500. Its totient is φ = 2506086624.

The previous prime is 7681859351. The next prime is 7681859357. The reversal of 7681859352 is 2539581867.

It is a tau number, because it is divible by the number of its divisors (72).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7681859351) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 134899 + ... + 183197.

Almost surely, 2^7681859352 is an apocalyptic number.

7681859352 is a gapful number since it is divisible by the number (72) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7681859352, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10628777250).

7681859352 is an abundant number, since it is smaller than the sum of its proper divisors (13575695148).

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

7681859352 is a wasteful number, since it uses less digits than its factorization.

7681859352 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48405 (or 48351 counting only the distinct ones).

The product of its digits is 3628800, while the sum is 54.

The square root of 7681859352 is about 87646.2169862453. The cubic root of 7681859352 is about 1973.1288673235.

The spelling of 7681859352 in words is "seven billion, six hundred eighty-one million, eight hundred fifty-nine thousand, three hundred fifty-two".