7681507760 has 20 divisors (see below), whose sum is σ = 17859505728. Its totient is φ = 3072603072.

The previous prime is 7681507759. The next prime is 7681507781. The reversal of 7681507760 is 677051867.

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

It is a super-2 number, since 2×7681507760² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 48009344 + ... + 48009503.

Almost surely, 2^7681507760 is an apocalyptic number.

It is an amenable number.

7681507760 is an abundant number, since it is smaller than the sum of its proper divisors (10177997968).

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

7681507760 is a wasteful number, since it uses less digits than its factorization.

7681507760 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96018860 (or 96018854 counting only the distinct ones).

The product of its (nonzero) digits is 493920, while the sum is 47.

The square root of 7681507760 is about 87644.2112178551. The cubic root of 7681507760 is about 1973.0987640687.

The spelling of 7681507760 in words is "seven billion, six hundred eighty-one million, five hundred seven thousand, seven hundred sixty".