12721730734034 has 64 divisors (see below), whose sum is σ = 23281169817600. Its totient is φ = 5089342648320.

The previous prime is 12721730734019. The next prime is 12721730734079. The reversal of 12721730734034 is 43043703712721.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 92090054 + ... + 92228094.

It is an arithmetic number, because the mean of its divisors is an integer number (363768278400).

Almost surely, 2^{12721730734034} is an apocalyptic number.

12721730734034 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

12721730734034 is a deficient number, since it is larger than the sum of its proper divisors (10559439083566).

12721730734034 is a wasteful number, since it uses less digits than its factorization.

12721730734034 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 141243.

The product of its (nonzero) digits is 592704, while the sum is 44.

The spelling of 12721730734034 in words is "twelve trillion, seven hundred twenty-one billion, seven hundred thirty million, seven hundred thirty-four thousand, thirty-four".