688901290889 has 8 divisors (see below), whose sum is σ = 789185873088. Its totient is φ = 589084236720.

The previous prime is 688901290871. The next prime is 688901290919. The reversal of 688901290889 is 988092109886.

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

It is not a de Polignac number, because 688901290889 - 2²⁰ = 688900242313 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (688901290289) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 116878847 + ... + 116884740.

It is an arithmetic number, because the mean of its divisors is an integer number (98648234136).

Almost surely, 2^688901290889 is an apocalyptic number.

It is an amenable number.

688901290889 is a deficient number, since it is larger than the sum of its proper divisors (100284582199).

688901290889 is a wasteful number, since it uses less digits than its factorization.

688901290889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 233764015.

The product of its (nonzero) digits is 35831808, while the sum is 68.

The spelling of 688901290889 in words is "six hundred eighty-eight billion, nine hundred one million, two hundred ninety thousand, eight hundred eighty-nine".