7680681660 has 48 divisors (see below), whose sum is σ = 21511185696. Its totient is φ = 2047679232.

The previous prime is 7680681643. The next prime is 7680681677. The reversal of 7680681660 is 661860867.

It is an interprime number because it is at equal distance from previous prime (7680681643) and next prime (7680681677).

It is a super-3 number, since 3×7680681660³ (a number of 31 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 275482 + ... + 302078.

It is an arithmetic number, because the mean of its divisors is an integer number (448149702).

Almost surely, 2^7680681660 is an apocalyptic number.

It is an amenable number.

7680681660 is an abundant number, since it is smaller than the sum of its proper divisors (13830504036).

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

7680681660 is a wasteful number, since it uses less digits than its factorization.

7680681660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31422 (or 31420 counting only the distinct ones).

The product of its (nonzero) digits is 580608, while the sum is 48.

The square root of 7680681660 is about 87639.4982870167. The cubic root of 7680681660 is about 1973.0280298945.

The spelling of 7680681660 in words is "seven billion, six hundred eighty million, six hundred eighty-one thousand, six hundred sixty".