689743570846 has 16 divisors (see below), whose sum is σ = 1128684085488. Its totient is φ = 313516252800.

The previous prime is 689743570811. The next prime is 689743570913. The reversal of 689743570846 is 648075347986.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3506566 + ... + 3698038.

It is an arithmetic number, because the mean of its divisors is an integer number (70542755343).

Almost surely, 2^689743570846 is an apocalyptic number.

689743570846 is a deficient number, since it is larger than the sum of its proper divisors (438940514642).

689743570846 is a wasteful number, since it uses less digits than its factorization.

689743570846 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 355227.

The product of its (nonzero) digits is 243855360, while the sum is 67.

The spelling of 689743570846 in words is "six hundred eighty-nine billion, seven hundred forty-three million, five hundred seventy thousand, eight hundred forty-six".