7681260313668 has 12 divisors (see below), whose sum is σ = 17922940731920. Its totient is φ = 2560420104552.

The previous prime is 7681260313637. The next prime is 7681260313687. The reversal of 7681260313668 is 8663130621867.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×7681260313668² (a number of 27 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, 320052513058 + ... + 320052513081.

Almost surely, 2^{7681260313668} is an apocalyptic number.

It is an amenable number.

7681260313668 is an abundant number, since it is smaller than the sum of its proper divisors (10241680418252).

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

7681260313668 is a wasteful number, since it uses less digits than its factorization.

7681260313668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 640105026146 (or 640105026144 counting only the distinct ones).

The product of its (nonzero) digits is 10450944, while the sum is 57.

The spelling of 7681260313668 in words is "seven trillion, six hundred eighty-one billion, two hundred sixty million, three hundred thirteen thousand, six hundred sixty-eight".