689503174438 has 32 divisors (see below), whose sum is σ = 1132816194720. Its totient is φ = 312803892480.

The previous prime is 689503174397. The next prime is 689503174439. The reversal of 689503174438 is 834471305986.

689503174438 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 not an unprimeable number, because it can be changed into a prime (689503174439) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18231108 + ... + 18268888.

It is an arithmetic number, because the mean of its divisors is an integer number (35400506085).

Almost surely, 2^689503174438 is an apocalyptic number.

689503174438 is a deficient number, since it is larger than the sum of its proper divisors (443313020282).

689503174438 is a wasteful number, since it uses less digits than its factorization.

689503174438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49752.

The product of its (nonzero) digits is 17418240, while the sum is 58.

The spelling of 689503174438 in words is "six hundred eighty-nine billion, five hundred three million, one hundred seventy-four thousand, four hundred thirty-eight".