54405143208 has 128 divisors (see below), whose sum is σ = 165821644800. Its totient is φ = 16424149248.

The previous prime is 54405143183. The next prime is 54405143239. The reversal of 54405143208 is 80234150445.

It is a happy number.

54405143208 is a `hidden beast` number, since 5 + 4 + 405 + 1 + 43 + 208 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 33960 + ... + 331607.

It is an arithmetic number, because the mean of its divisors is an integer number (1295481600).

Almost surely, 2^54405143208 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 54405143208, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (82910822400).

54405143208 is an abundant number, since it is smaller than the sum of its proper divisors (111416501592).

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

54405143208 is a wasteful number, since it uses less digits than its factorization.

54405143208 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 365648 (or 365638 counting only the distinct ones).

The product of its (nonzero) digits is 76800, while the sum is 36.

The spelling of 54405143208 in words is "fifty-four billion, four hundred five million, one hundred forty-three thousand, two hundred eight".