7681953612 has 48 divisors (see below), whose sum is σ = 19306770560. Its totient is φ = 2369461248.

The previous prime is 7681953599. The next prime is 7681953619. The reversal of 7681953612 is 2163591867.

It is a super-2 number, since 2×7681953612² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (7681953619) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 381973 + ... + 401580.

Almost surely, 2^7681953612 is an apocalyptic number.

It is an amenable number.

7681953612 is an abundant number, since it is smaller than the sum of its proper divisors (11624816948).

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

7681953612 is a wasteful number, since it uses less digits than its factorization.

7681953612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 783622 (or 783620 counting only the distinct ones).

The product of its digits is 544320, while the sum is 48.

The square root of 7681953612 is about 87646.7547145928. The cubic root of 7681953612 is about 1973.1369376946.

The spelling of 7681953612 in words is "seven billion, six hundred eighty-one million, nine hundred fifty-three thousand, six hundred twelve".