54840641806671 has 16 divisors (see below), whose sum is σ = 85604904284928. Its totient is φ = 30573180100800.

The previous prime is 54840641806633. The next prime is 54840641806673. The reversal of 54840641806671 is 17660814604845.

54840641806671 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a de Polignac number, because none of the positive numbers 2^k-54840641806671 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54840641806673) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 31847061745 + ... + 31847063466.

It is an arithmetic number, because the mean of its divisors is an integer number (5350306517808).

Almost surely, 2^{54840641806671} is an apocalyptic number.

54840641806671 is a deficient number, since it is larger than the sum of its proper divisors (30764262478257).

54840641806671 is a wasteful number, since it uses less digits than its factorization.

54840641806671 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63694125262.

The product of its (nonzero) digits is 30965760, while the sum is 60.

The spelling of 54840641806671 in words is "fifty-four trillion, eight hundred forty billion, six hundred forty-one million, eight hundred six thousand, six hundred seventy-one".