54857385738238 has 4 divisors (see below), whose sum is σ = 82286078607360. Its totient is φ = 27428692869118.

The previous prime is 54857385738193. The next prime is 54857385738263. The reversal of 54857385738238 is 83283758375845.

It is a semiprime because it is the product of two primes.

It is a Smith number, since the sum of its digits (76) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13714346434558 + ... + 13714346434561.

It is an arithmetic number, because the mean of its divisors is an integer number (20571519651840).

Almost surely, 2^{54857385738238} is an apocalyptic number.

54857385738238 is a deficient number, since it is larger than the sum of its proper divisors (27428692869122).

54857385738238 is a wasteful number, since it uses less digits than its factorization.

54857385738238 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27428692869121.

The product of its digits is 5419008000, while the sum is 76.

The spelling of 54857385738238 in words is "fifty-four trillion, eight hundred fifty-seven billion, three hundred eighty-five million, seven hundred thirty-eight thousand, two hundred thirty-eight".