28186142745601 has 16 divisors (see below), whose sum is σ = 29045674224000. Its totient is φ = 27331845752448.

The previous prime is 28186142745599. The next prime is 28186142745689. The reversal of 28186142745601 is 10654724168182.

It is a cyclic number.

It is not a de Polignac number, because 28186142745601 - 2¹ = 28186142745599 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28186142745401) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21943341 + ... + 23192293.

It is an arithmetic number, because the mean of its divisors is an integer number (1815354639000).

Almost surely, 2^{28186142745601} is an apocalyptic number.

It is an amenable number.

28186142745601 is a deficient number, since it is larger than the sum of its proper divisors (859531478399).

28186142745601 is a wasteful number, since it uses less digits than its factorization.

28186142745601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1251048.

The product of its (nonzero) digits is 5160960, while the sum is 55.

The spelling of 28186142745601 in words is "twenty-eight trillion, one hundred eighty-six billion, one hundred forty-two million, seven hundred forty-five thousand, six hundred one".