54139331644281 has 48 divisors (see below), whose sum is σ = 85864558852800. Its totient is φ = 32665488575616.

The previous prime is 54139331644273. The next prime is 54139331644289. The reversal of 54139331644281 is 18244613393145.

54139331644281 is a `hidden beast` number, since 5 + 4 + 1 + 3 + 9 + 3 + 316 + 44 + 281 = 666.

It is an interprime number because it is at equal distance from previous prime (54139331644273) and next prime (54139331644289).

It is not a de Polignac number, because 54139331644281 - 2³ = 54139331644273 is a prime.

It is a super-2 number, since 2×54139331644281² (a number of 28 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (54139331644289) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 6055230 + ... + 12039288.

It is an arithmetic number, because the mean of its divisors is an integer number (1788844976100).

Almost surely, 2^{54139331644281} is an apocalyptic number.

It is an amenable number.

54139331644281 is a deficient number, since it is larger than the sum of its proper divisors (31725227208519).

54139331644281 is a wasteful number, since it uses less digits than its factorization.

54139331644281 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5985590 (or 5985587 counting only the distinct ones).

The product of its digits is 7464960, while the sum is 54.

The spelling of 54139331644281 in words is "fifty-four trillion, one hundred thirty-nine billion, three hundred thirty-one million, six hundred forty-four thousand, two hundred eighty-one".