689770748305 has 32 divisors (see below), whose sum is σ = 920680243200. Its totient is φ = 493714533312.

The previous prime is 689770748273. The next prime is 689770748321. The reversal of 689770748305 is 503847077986.

It is a cyclic number.

It is not a de Polignac number, because 689770748305 - 2⁵ = 689770748273 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1825389 + ... + 2170618.

It is an arithmetic number, because the mean of its divisors is an integer number (28771257600).

Almost surely, 2^689770748305 is an apocalyptic number.

It is an amenable number.

689770748305 is a deficient number, since it is larger than the sum of its proper divisors (230909494895).

689770748305 is a wasteful number, since it uses less digits than its factorization.

689770748305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3996133.

The product of its (nonzero) digits is 71124480, while the sum is 64.

The spelling of 689770748305 in words is "six hundred eighty-nine billion, seven hundred seventy million, seven hundred forty-eight thousand, three hundred five".