7688390016 has 32 divisors (see below), whose sum is σ = 20422287000. Its totient is φ = 2562796544.

The previous prime is 7688389997. The next prime is 7688390051. The reversal of 7688390016 is 6100938867.

It is a tau number, because it is divible by the number of its divisors (32).

It is a super-2 number, since 2×7688390016² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (48).

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, 10010541 + ... + 10011308.

Almost surely, 2^7688390016 is an apocalyptic number.

It is an amenable number.

7688390016 is an abundant number, since it is smaller than the sum of its proper divisors (12733896984).

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

7688390016 is a wasteful number, since it uses less digits than its factorization.

7688390016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20021866 (or 20021854 counting only the distinct ones).

The product of its (nonzero) digits is 435456, while the sum is 48.

The square root of 7688390016 is about 87683.4648950416. The cubic root of 7688390016 is about 1973.6878548985.

The spelling of 7688390016 in words is "seven billion, six hundred eighty-eight million, three hundred ninety thousand, sixteen".