689898301291 has 6 divisors (see below), whose sum is σ = 721198035740. Its totient is φ = 659902722468.

The previous prime is 689898301229. The next prime is 689898301327. The reversal of 689898301291 is 192103898986.

It is not a de Polignac number, because 689898301291 - 2⁷ = 689898301163 is a prime.

It is a super-3 number, since 3×689898301291³ (a number of 36 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (689898301201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 652077261 + ... + 652078318.

Almost surely, 2^689898301291 is an apocalyptic number.

689898301291 is a deficient number, since it is larger than the sum of its proper divisors (31299734449).

689898301291 is a wasteful number, since it uses less digits than its factorization.

689898301291 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1304155625 (or 1304155602 counting only the distinct ones).

The product of its (nonzero) digits is 13436928, while the sum is 64.

The spelling of 689898301291 in words is "six hundred eighty-nine billion, eight hundred ninety-eight million, three hundred one thousand, two hundred ninety-one".