38542543823 has 6 divisors (see below), whose sum is σ = 44835204096. Its totient is φ = 33036466092.

The previous prime is 38542543747. The next prime is 38542543829. The reversal of 38542543823 is 32834524583.

It is not a de Polignac number, because 38542543823 - 2¹⁰ = 38542542799 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38542543829) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 393291215 + ... + 393291312.

It is an arithmetic number, because the mean of its divisors is an integer number (7472534016).

Almost surely, 2^38542543823 is an apocalyptic number.

38542543823 is a deficient number, since it is larger than the sum of its proper divisors (6292660273).

38542543823 is an equidigital number, since it uses as much as digits as its factorization.

38542543823 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 786582541 (or 786582534 counting only the distinct ones).

The product of its digits is 2764800, while the sum is 47.

The spelling of 38542543823 in words is "thirty-eight billion, five hundred forty-two million, five hundred forty-three thousand, eight hundred twenty-three".