7685568400828 has 12 divisors (see below), whose sum is σ = 13450139858512. Its totient is φ = 3842671298400.

The previous prime is 7685568400799. The next prime is 7685568400831. The reversal of 7685568400828 is 8280048655867.

It is a super-2 number, since 2×7685568400828² (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 3 ways as a sum of consecutive naturals, for example, 28072248 + ... + 28344703.

Almost surely, 2^{7685568400828} is an apocalyptic number.

It is an amenable number.

7685568400828 is a deficient number, since it is larger than the sum of its proper divisors (5764571457684).

7685568400828 is a wasteful number, since it uses less digits than its factorization.

7685568400828 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56451012 (or 56451010 counting only the distinct ones).

The product of its (nonzero) digits is 206438400, while the sum is 67.

The spelling of 7685568400828 in words is "seven trillion, six hundred eighty-five billion, five hundred sixty-eight million, four hundred thousand, eight hundred twenty-eight".