7681878272 has 36 divisors (see below), whose sum is σ = 15361273200. Its totient is φ = 3834044928.

The previous prime is 7681878263. The next prime is 7681878283. The reversal of 7681878272 is 2728781867.

It is a super-2 number, since 2×7681878272² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

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, 117479 + ... + 170777.

Almost surely, 2^7681878272 is an apocalyptic number.

It is an amenable number.

7681878272 is a deficient number, since it is larger than the sum of its proper divisors (7679394928).

7681878272 is an equidigital number, since it uses as much as digits as its factorization.

7681878272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53878 (or 53864 counting only the distinct ones).

The product of its digits is 4214784, while the sum is 56.

The square root of 7681878272 is about 87646.3249201015. The cubic root of 7681878272 is about 1973.1304872251.

The spelling of 7681878272 in words is "seven billion, six hundred eighty-one million, eight hundred seventy-eight thousand, two hundred seventy-two".