123884601680 has 160 divisors (see below), whose sum is σ = 331586777088. Its totient is φ = 42165043200.

The previous prime is 123884601679. The next prime is 123884601689. The reversal of 123884601680 is 86106488321.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123884601689) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 71983220 + ... + 71984940.

Almost surely, 2^123884601680 is an apocalyptic number.

123884601680 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 123884601680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (165793388544).

123884601680 is an abundant number, since it is smaller than the sum of its proper divisors (207702175408).

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

123884601680 is a wasteful number, since it uses less digits than its factorization.

123884601680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2605 (or 2599 counting only the distinct ones).

The product of its (nonzero) digits is 442368, while the sum is 47.

The spelling of 123884601680 in words is "one hundred twenty-three billion, eight hundred eighty-four million, six hundred one thousand, six hundred eighty".