689812212002 has 8 divisors (see below), whose sum is σ = 1036704343212. Its totient is φ = 344244097600.

The previous prime is 689812211999. The next prime is 689812212041. The reversal of 689812212002 is 200212218986.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 688251092881 + 1561119121 = 829609^2 + 39511^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 331002899 + ... + 331004982.

Almost surely, 2^689812212002 is an apocalyptic number.

689812212002 is a deficient number, since it is larger than the sum of its proper divisors (346892131210).

689812212002 is a wasteful number, since it uses less digits than its factorization.

689812212002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 662008404.

The product of its (nonzero) digits is 55296, while the sum is 41.

The spelling of 689812212002 in words is "six hundred eighty-nine billion, eight hundred twelve million, two hundred twelve thousand, two".