124321434796728 has 128 divisors (see below), whose sum is σ = 372192969556800. Its totient is φ = 38222792898048.

The previous prime is 124321434796721. The next prime is 124321434796847. The reversal of 124321434796728 is 827697434123421.

124321434796728 is a `hidden beast` number, since 1 + 2 + 4 + 3 + 214 + 347 + 9 + 6 + 72 + 8 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (124321434796721) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 13749351 + ... + 20920982.

Almost surely, 2^{124321434796728} is an apocalyptic number.

124321434796728 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

124321434796728 is an abundant number, since it is smaller than the sum of its proper divisors (247871534760072).

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

124321434796728 is a wasteful number, since it uses less digits than its factorization.

124321434796728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34671638 (or 34671628 counting only the distinct ones).

The product of its digits is 97542144, while the sum is 63.

The spelling of 124321434796728 in words is "one hundred twenty-four trillion, three hundred twenty-one billion, four hundred thirty-four million, seven hundred ninety-six thousand, seven hundred twenty-eight".