238654144236543 has 8 divisors (see below), whose sum is σ = 363663457884288. Its totient is φ = 136373796706584.

The previous prime is 238654144236509. The next prime is 238654144236569. The reversal of 238654144236543 is 345632441456832.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 238654144236543 - 2¹⁷ = 238654144105471 is a prime.

It is a super-2 number, since 2×238654144236543² (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (238654144226543) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5682241529421 + ... + 5682241529462.

It is an arithmetic number, because the mean of its divisors is an integer number (45457932235536).

Almost surely, 2^{238654144236543} is an apocalyptic number.

238654144236543 is a deficient number, since it is larger than the sum of its proper divisors (125009313647745).

238654144236543 is a wasteful number, since it uses less digits than its factorization.

238654144236543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11364483058893.

The product of its digits is 199065600, while the sum is 60.

The spelling of 238654144236543 in words is "two hundred thirty-eight trillion, six hundred fifty-four billion, one hundred forty-four million, two hundred thirty-six thousand, five hundred forty-three".