7686472720 has 20 divisors (see below), whose sum is σ = 17871049260. Its totient is φ = 3074589056.

The previous prime is 7686472699. The next prime is 7686472727. The reversal of 7686472720 is 272746867.

It can be written as a sum of positive squares in 2 ways, for example, as 1940226304 + 5746246416 = 44048^2 + 75804^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is not an unprimeable number, because it can be changed into a prime (7686472727) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 48040375 + ... + 48040534.

It is an arithmetic number, because the mean of its divisors is an integer number (893552463).

Almost surely, 2^7686472720 is an apocalyptic number.

It is an amenable number.

7686472720 is an abundant number, since it is smaller than the sum of its proper divisors (10184576540).

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

7686472720 is a wasteful number, since it uses less digits than its factorization.

7686472720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96080922 (or 96080916 counting only the distinct ones).

The product of its (nonzero) digits is 1580544, while the sum is 49.

The square root of 7686472720 is about 87672.5311599933. The cubic root of 7686472720 is about 1973.5237781358.

The spelling of 7686472720 in words is "seven billion, six hundred eighty-six million, four hundred seventy-two thousand, seven hundred twenty".