54142140542 has 16 divisors (see below), whose sum is σ = 93281510400. Its totient is φ = 23087171448.

The previous prime is 54142140523. The next prime is 54142140551. The reversal of 54142140542 is 24504124145.

It is a junction number, because it is equal to n+sod(n) for n = 54142140499 and 54142140508.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 9714038 + ... + 9719609.

It is an arithmetic number, because the mean of its divisors is an integer number (5830094400).

Almost surely, 2^54142140542 is an apocalyptic number.

54142140542 is a deficient number, since it is larger than the sum of its proper divisors (39139369858).

54142140542 is a wasteful number, since it uses less digits than its factorization.

54142140542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19433855.

The product of its (nonzero) digits is 25600, while the sum is 32.

Adding to 54142140542 its reverse (24504124145), we get a palindrome (78646264687).

The spelling of 54142140542 in words is "fifty-four billion, one hundred forty-two million, one hundred forty thousand, five hundred forty-two".