7857680488688 has 80 divisors (see below), whose sum is σ = 15717967080960. Its totient is φ = 3803491980288.

The previous prime is 7857680488667. The next prime is 7857680488711. The reversal of 7857680488688 is 8868840867587.

It is a super-2 number, since 2×7857680488688² (a number of 27 digits) contains 22 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, 241780856 + ... + 241813352.

It is an arithmetic number, because the mean of its divisors is an integer number (196474588512).

Almost surely, 2^{7857680488688} is an apocalyptic number.

It is an amenable number.

7857680488688 is an abundant number, since it is smaller than the sum of its proper divisors (7860286592272).

7857680488688 is a wasteful number, since it uses less digits than its factorization.

7857680488688 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36454 (or 36448 counting only the distinct ones).

The product of its (nonzero) digits is 9248440320, while the sum is 83.

The spelling of 7857680488688 in words is "seven trillion, eight hundred fifty-seven billion, six hundred eighty million, four hundred eighty-eight thousand, six hundred eighty-eight".