54043628721547 has 4 divisors (see below), whose sum is σ = 54214113355056. Its totient is φ = 53873144088040.

The previous prime is 54043628721479. The next prime is 54043628721617. The reversal of 54043628721547 is 74512782634045.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 54043628721547 - 2³⁵ = 54009268983179 is a prime.

It is a Smith number, since the sum of its digits (58) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 54043628721491 and 54043628721500.

It is not an unprimeable number, because it can be changed into a prime (54043628221547) 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, 85242316279 + ... + 85242316912.

It is an arithmetic number, because the mean of its divisors is an integer number (13553528338764).

Almost surely, 2^{54043628721547} is an apocalyptic number.

54043628721547 is a deficient number, since it is larger than the sum of its proper divisors (170484633509).

54043628721547 is a wasteful number, since it uses less digits than its factorization.

54043628721547 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 170484633508.

The product of its (nonzero) digits is 45158400, while the sum is 58.

The spelling of 54043628721547 in words is "fifty-four trillion, forty-three billion, six hundred twenty-eight million, seven hundred twenty-one thousand, five hundred forty-seven".