206469489888 has 120 divisors (see below), whose sum is σ = 607446378000. Its totient is φ = 68797624320.

The previous prime is 206469489857. The next prime is 206469489893. The reversal of 206469489888 is 888984964602.

206469489888 is a `hidden beast` number, since 2 + 0 + 6 + 4 + 69 + 489 + 8 + 88 = 666.

It is a super-2 number, since 2×206469489888² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (72).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 7760128 + ... + 7786688.

It is an arithmetic number, because the mean of its divisors is an integer number (5062053150).

Almost surely, 2^206469489888 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 206469489888, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (303723189000).

206469489888 is an abundant number, since it is smaller than the sum of its proper divisors (400976888112).

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

206469489888 is a wasteful number, since it uses less digits than its factorization.

206469489888 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29582 (or 29565 counting only the distinct ones).

The product of its (nonzero) digits is 382205952, while the sum is 72.

The spelling of 206469489888 in words is "two hundred six billion, four hundred sixty-nine million, four hundred eighty-nine thousand, eight hundred eighty-eight".