689532327950 has 24 divisors (see below), whose sum is σ = 1282978676520. Its totient is φ = 275716469600.

The previous prime is 689532327949. The next prime is 689532327977. The reversal of 689532327950 is 59723235986.

It is a self number, because there is not a number n which added to its sum of digits gives 689532327950.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2267060 + ... + 2553159.

It is an arithmetic number, because the mean of its divisors is an integer number (53457444855).

Almost surely, 2^689532327950 is an apocalyptic number.

689532327950 is a deficient number, since it is larger than the sum of its proper divisors (593446348570).

689532327950 is a wasteful number, since it uses less digits than its factorization.

689532327950 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4823092 (or 4823087 counting only the distinct ones).

The product of its (nonzero) digits is 24494400, while the sum is 59.

The spelling of 689532327950 in words is "six hundred eighty-nine billion, five hundred thirty-two million, three hundred twenty-seven thousand, nine hundred fifty".