54855834138 has 48 divisors (see below), whose sum is σ = 136143047040. Its totient is φ = 15637377888.

The previous prime is 54855834079. The next prime is 54855834149. The reversal of 54855834138 is 83143855845.

54855834138 is a `hidden beast` number, since 5 + 48 + 5 + 583 + 4 + 13 + 8 = 666.

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 23 ways as a sum of consecutive naturals, for example, 440545 + ... + 551172.

It is an arithmetic number, because the mean of its divisors is an integer number (2836313480).

Almost surely, 2^54855834138 is an apocalyptic number.

54855834138 is an abundant number, since it is smaller than the sum of its proper divisors (81287212902).

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

54855834138 is a wasteful number, since it uses less digits than its factorization.

54855834138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 992171 (or 992168 counting only the distinct ones).

The product of its digits is 9216000, while the sum is 54.

The spelling of 54855834138 in words is "fifty-four billion, eight hundred fifty-five million, eight hundred thirty-four thousand, one hundred thirty-eight".