54515121868177 has 8 divisors (see below), whose sum is σ = 55258595905320. Its totient is φ = 53774557710720.

The previous prime is 54515121868157. The next prime is 54515121868187. The reversal of 54515121868177 is 77186812151545.

It can be written as a sum of positive squares in 4 ways, for example, as 9821604995136 + 44693516873041 = 3133944^2 + 6685321^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 54515121868177 - 2¹¹ = 54515121866129 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (54515121868117) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 727432198 + ... + 727507135.

It is an arithmetic number, because the mean of its divisors is an integer number (6907324488165).

Almost surely, 2^{54515121868177} is an apocalyptic number.

It is an amenable number.

54515121868177 is a deficient number, since it is larger than the sum of its proper divisors (743474037143).

54515121868177 is a wasteful number, since it uses less digits than its factorization.

54515121868177 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1454939843.

The product of its digits is 18816000, while the sum is 61.

The spelling of 54515121868177 in words is "fifty-four trillion, five hundred fifteen billion, one hundred twenty-one million, eight hundred sixty-eight thousand, one hundred seventy-seven".