689016724662 has 64 divisors (see below), whose sum is σ = 1603675358208. Its totient is φ = 193276368000.

The previous prime is 689016724651. The next prime is 689016724663. The reversal of 689016724662 is 266427610986.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (689016724663) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1137487 + ... + 1634597.

It is an arithmetic number, because the mean of its divisors is an integer number (25057427472).

Almost surely, 2^689016724662 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 689016724662, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (801837679104).

689016724662 is an abundant number, since it is smaller than the sum of its proper divisors (914658633546).

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

689016724662 is a wasteful number, since it uses less digits than its factorization.

689016724662 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 497725.

The product of its (nonzero) digits is 10450944, while the sum is 57.

The spelling of 689016724662 in words is "six hundred eighty-nine billion, sixteen million, seven hundred twenty-four thousand, six hundred sixty-two".