54691730728 has 16 divisors (see below), whose sum is σ = 107005560480. Its totient is φ = 26156914608.

The previous prime is 54691730713. The next prime is 54691730729. The reversal of 54691730728 is 82703719645.

54691730728 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (54691730729) 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, 148618650 + ... + 148619017.

It is an arithmetic number, because the mean of its divisors is an integer number (6687847530).

It is a 1-persistent number, because it is pandigital, but 2⋅54691730728 = 109383461456 is not.

Almost surely, 2^54691730728 is an apocalyptic number.

It is an amenable number.

54691730728 is a deficient number, since it is larger than the sum of its proper divisors (52313829752).

54691730728 is a wasteful number, since it uses less digits than its factorization.

54691730728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 297237696 (or 297237692 counting only the distinct ones).

The product of its (nonzero) digits is 2540160, while the sum is 52.

The spelling of 54691730728 in words is "fifty-four billion, six hundred ninety-one million, seven hundred thirty thousand, seven hundred twenty-eight".