689696621038 has 8 divisors (see below), whose sum is σ = 1067917348800. Its totient is φ = 333724171440.

The previous prime is 689696621023. The next prime is 689696621111. The reversal of 689696621038 is 830126696986.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5562069463 + ... + 5562069586.

It is an arithmetic number, because the mean of its divisors is an integer number (133489668600).

Almost surely, 2^689696621038 is an apocalyptic number.

689696621038 is a deficient number, since it is larger than the sum of its proper divisors (378220727762).

689696621038 is a wasteful number, since it uses less digits than its factorization.

689696621038 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11124139082.

The product of its (nonzero) digits is 40310784, while the sum is 64.

The spelling of 689696621038 in words is "six hundred eighty-nine billion, six hundred ninety-six million, six hundred twenty-one thousand, thirty-eight".