689190168928 has 12 divisors (see below), whose sum is σ = 1356843145140. Its totient is φ = 344595084448.

The previous prime is 689190168899. The next prime is 689190168977. The reversal of 689190168928 is 829861091986.

689190168928 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10768596358 + ... + 10768596421.

It is an arithmetic number, because the mean of its divisors is an integer number (113070262095).

Almost surely, 2^689190168928 is an apocalyptic number.

It is an amenable number.

689190168928 is a deficient number, since it is larger than the sum of its proper divisors (667652976212).

689190168928 is a wasteful number, since it uses less digits than its factorization.

689190168928 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21537192789 (or 21537192781 counting only the distinct ones).

The product of its (nonzero) digits is 26873856, while the sum is 67.

The spelling of 689190168928 in words is "six hundred eighty-nine billion, one hundred ninety million, one hundred sixty-eight thousand, nine hundred twenty-eight".