7688457064 has 32 divisors (see below), whose sum is σ = 14998118400. Its totient is φ = 3690912960.

The previous prime is 7688457047. The next prime is 7688457083. The reversal of 7688457064 is 4607548867.

It is a super-2 number, since 2×7688457064² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 7688456996 and 7688457014.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 90559 + ... + 153550.

It is an arithmetic number, because the mean of its divisors is an integer number (468691200).

Almost surely, 2^7688457064 is an apocalyptic number.

It is an amenable number.

7688457064 is a deficient number, since it is larger than the sum of its proper divisors (7309661336).

7688457064 is a wasteful number, since it uses less digits than its factorization.

7688457064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 244273 (or 244269 counting only the distinct ones).

The product of its (nonzero) digits is 9031680, while the sum is 55.

The square root of 7688457064 is about 87683.8472239899. The cubic root of 7688457064 is about 1973.6935921828.

The spelling of 7688457064 in words is "seven billion, six hundred eighty-eight million, four hundred fifty-seven thousand, sixty-four".