689011100002 has 32 divisors (see below), whose sum is σ = 1115600282352. Its totient is φ = 317939841024.

The previous prime is 689011099993. The next prime is 689011100003. The reversal of 689011100002 is 200001110986.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 527640979321 + 161370120681 = 726389^2 + 401709^2 .

It is not an unprimeable number, because it can be changed into a prime (689011100003) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3049848 + ... + 3267964.

Almost surely, 2^689011100002 is an apocalyptic number.

689011100002 is a deficient number, since it is larger than the sum of its proper divisors (426589182350).

689011100002 is a wasteful number, since it uses less digits than its factorization.

689011100002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 219942.

The product of its (nonzero) digits is 864, while the sum is 28.

Adding to 689011100002 its reverse (200001110986), we get a palindrome (889012210988).

The spelling of 689011100002 in words is "six hundred eighty-nine billion, eleven million, one hundred thousand, two".