54390044123 has 4 divisors (see below), whose sum is σ = 54390511560. Its totient is φ = 54389576688.

The previous prime is 54390044113. The next prime is 54390044221. The reversal of 54390044123 is 32144009345.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-54390044123 is a prime.

It is a super-3 number, since 3×54390044123³ (a number of 33 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (54390044113) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 93911 + ... + 342927.

It is an arithmetic number, because the mean of its divisors is an integer number (13597627890).

Almost surely, 2^54390044123 is an apocalyptic number.

54390044123 is a deficient number, since it is larger than the sum of its proper divisors (467437).

54390044123 is a wasteful number, since it uses less digits than its factorization.

54390044123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 467436.

The product of its (nonzero) digits is 51840, while the sum is 35.

The spelling of 54390044123 in words is "fifty-four billion, three hundred ninety million, forty-four thousand, one hundred twenty-three".