54085989840 has 40 divisors (see below), whose sum is σ = 167666569248. Its totient is φ = 14422930560.

The previous prime is 54085989751. The next prime is 54085989863. The reversal of 54085989840 is 4898958045.

It is a tau number, because it is divible by the number of its divisors (40).

It is a Harshad number since it is a multiple of its sum of digits (60).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 112678906 + ... + 112679385.

Almost surely, 2^54085989840 is an apocalyptic number.

It is an amenable number.

54085989840 is an abundant number, since it is smaller than the sum of its proper divisors (113580579408).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

54085989840 is a wasteful number, since it uses less digits than its factorization.

54085989840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 225358307 (or 225358301 counting only the distinct ones).

The product of its (nonzero) digits is 16588800, while the sum is 60.

The spelling of 54085989840 in words is "fifty-four billion, eighty-five million, nine hundred eighty-nine thousand, eight hundred forty".