289681903106 has 8 divisors (see below), whose sum is σ = 434542532220. Its totient is φ = 144834392368.

The previous prime is 289681903103. The next prime is 289681903157. The reversal of 289681903106 is 601309186982.

It can be written as a sum of positive squares in 2 ways, for example, as 250915837225 + 38766065881 = 500915^2 + 196891^2 .

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

It is a super-2 number, since 2×289681903106² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (289681903103) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3224201 + ... + 3312828.

Almost surely, 2^289681903106 is an apocalyptic number.

289681903106 is a deficient number, since it is larger than the sum of its proper divisors (144860629114).

289681903106 is a wasteful number, since it uses less digits than its factorization.

289681903106 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6559188.

The product of its (nonzero) digits is 1119744, while the sum is 53.

The spelling of 289681903106 in words is "two hundred eighty-nine billion, six hundred eighty-one million, nine hundred three thousand, one hundred six".