689789196305 has 16 divisors (see below), whose sum is σ = 903042857088. Its totient is φ = 501639264000.

The previous prime is 689789196301. The next prime is 689789196427. The reversal of 689789196305 is 503691987986.

It is not a de Polignac number, because 689789196305 - 2² = 689789196301 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (689789196301) 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, 802745 + ... + 1422665.

It is an arithmetic number, because the mean of its divisors is an integer number (56440178568).

Almost surely, 2^689789196305 is an apocalyptic number.

It is an amenable number.

689789196305 is a deficient number, since it is larger than the sum of its proper divisors (213253660783).

689789196305 is a wasteful number, since it uses less digits than its factorization.

689789196305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 640168.

The product of its (nonzero) digits is 176359680, while the sum is 71.

The spelling of 689789196305 in words is "six hundred eighty-nine billion, seven hundred eighty-nine million, one hundred ninety-six thousand, three hundred five".