123806471680 has 40 divisors (see below), whose sum is σ = 296845366752. Its totient is φ = 49522587648.

The previous prime is 123806471669. The next prime is 123806471689. The reversal of 123806471680 is 86174608321.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (40).

It is a self number, because there is not a number n which added to its sum of digits gives 123806471680.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123806471689) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24178392 + ... + 24183511.

Almost surely, 2^123806471680 is an apocalyptic number.

123806471680 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

123806471680 is an abundant number, since it is smaller than the sum of its proper divisors (173038895072).

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

123806471680 is an frugal number, since it uses more digits than its factorization.

123806471680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48361926 (or 48361910 counting only the distinct ones).

The product of its (nonzero) digits is 387072, while the sum is 46.

The spelling of 123806471680 in words is "one hundred twenty-three billion, eight hundred six million, four hundred seventy-one thousand, six hundred eighty".