7688817040 has 20 divisors (see below), whose sum is σ = 17876499804. Its totient is φ = 3075526784.

The previous prime is 7688817029. The next prime is 7688817061. The reversal of 7688817040 is 407188867.

It can be written as a sum of positive squares in 2 ways, for example, as 2367406336 + 5321410704 = 48656^2 + 72948^2 .

It is a tau number, because it is divible by the number of its divisors (20).

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, 48055027 + ... + 48055186.

Almost surely, 2^7688817040 is an apocalyptic number.

It is an amenable number.

7688817040 is an abundant number, since it is smaller than the sum of its proper divisors (10187682764).

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

7688817040 is a wasteful number, since it uses less digits than its factorization.

7688817040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96110226 (or 96110220 counting only the distinct ones).

The product of its (nonzero) digits is 602112, while the sum is 49.

The square root of 7688817040 is about 87685.8998927422. The cubic root of 7688817040 is about 1973.7243946889.

The spelling of 7688817040 in words is "seven billion, six hundred eighty-eight million, eight hundred seventeen thousand, forty".