689921022289 has 8 divisors (see below), whose sum is σ = 704628114048. Its totient is φ = 675215094000.

The previous prime is 689921022277. The next prime is 689921022361. The reversal of 689921022289 is 982220129986.

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

It is a cyclic number.

It is not a de Polignac number, because 689921022289 - 2²⁷ = 689786804561 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (689921022229) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 964914 + ... + 1520164.

It is an arithmetic number, because the mean of its divisors is an integer number (88078514256).

Almost surely, 2^689921022289 is an apocalyptic number.

It is an amenable number.

689921022289 is a deficient number, since it is larger than the sum of its proper divisors (14707091759).

689921022289 is a wasteful number, since it uses less digits than its factorization.

689921022289 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 581735.

The product of its (nonzero) digits is 4478976, while the sum is 58.

The spelling of 689921022289 in words is "six hundred eighty-nine billion, nine hundred twenty-one million, twenty-two thousand, two hundred eighty-nine".