689802248502 has 80 divisors (see below), whose sum is σ = 1585691558352. Its totient is φ = 224050639680.

The previous prime is 689802248477. The next prime is 689802248581. The reversal of 689802248502 is 205842208986.

It is a happy number.

689802248502 is a `hidden beast` number, since 6 + 8 + 98 + 0 + 2 + 2 + 48 + 502 = 666.

It is a super-2 number, since 2×689802248502² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 731188 + ... + 1383560.

Almost surely, 2^689802248502 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 689802248502, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (792845779176).

689802248502 is an abundant number, since it is smaller than the sum of its proper divisors (895889309850).

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

689802248502 is a wasteful number, since it uses less digits than its factorization.

689802248502 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 652555 (or 652546 counting only the distinct ones).

The product of its (nonzero) digits is 4423680, while the sum is 54.

The spelling of 689802248502 in words is "six hundred eighty-nine billion, eight hundred two million, two hundred forty-eight thousand, five hundred two".