689693869038 has 32 divisors (see below), whose sum is σ = 1384092952704. Its totient is φ = 229113984672.

The previous prime is 689693869027. The next prime is 689693869049. The reversal of 689693869038 is 830968396986.

689693869038 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (689693869027) and next prime (689693869049).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13802956 + ... + 13852832.

It is an arithmetic number, because the mean of its divisors is an integer number (43252904772).

Almost surely, 2^689693869038 is an apocalyptic number.

689693869038 is an abundant number, since it is smaller than the sum of its proper divisors (694399083666).

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

689693869038 is a wasteful number, since it uses less digits than its factorization.

689693869038 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57696.

The product of its (nonzero) digits is 725594112, while the sum is 75.

The spelling of 689693869038 in words is "six hundred eighty-nine billion, six hundred ninety-three million, eight hundred sixty-nine thousand, thirty-eight".