689348894740 has 48 divisors (see below), whose sum is σ = 1582883064000. Its totient is φ = 250093370880.

The previous prime is 689348894723. The next prime is 689348894743. The reversal of 689348894740 is 47498843986.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 689348894740.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (689348894743) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3522990 + ... + 3713509.

It is an arithmetic number, because the mean of its divisors is an integer number (32976730500).

Almost surely, 2^689348894740 is an apocalyptic number.

It is an amenable number.

689348894740 is an abundant number, since it is smaller than the sum of its proper divisors (893534169260).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

689348894740 is a wasteful number, since it uses less digits than its factorization.

689348894740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7236952 (or 7236950 counting only the distinct ones).

The product of its (nonzero) digits is 334430208, while the sum is 70.

The spelling of 689348894740 in words is "six hundred eighty-nine billion, three hundred forty-eight million, eight hundred ninety-four thousand, seven hundred forty".