28185120542042 has 8 divisors (see below), whose sum is σ = 42908690974656. Its totient is φ = 13882223550492.

The previous prime is 28185120542039. The next prime is 28185120542057. The reversal of 28185120542042 is 24024502158182.

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

It is a junction number, because it is equal to n+sod(n) for n = 28185120541984 and 28185120542002.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 105168360098 + ... + 105168360365.

It is an arithmetic number, because the mean of its divisors is an integer number (5363586371832).

Almost surely, 2^{28185120542042} is an apocalyptic number.

28185120542042 is a deficient number, since it is larger than the sum of its proper divisors (14723570432614).

28185120542042 is a wasteful number, since it uses less digits than its factorization.

28185120542042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 210336720532.

The product of its (nonzero) digits is 409600, while the sum is 44.

The spelling of 28185120542042 in words is "twenty-eight trillion, one hundred eighty-five billion, one hundred twenty million, five hundred forty-two thousand, forty-two".