27784540201 has 16 divisors (see below), whose sum is σ = 31637265408. Its totient is φ = 24153584400.

The previous prime is 27784540193. The next prime is 27784540241. The reversal of 27784540201 is 10204548772.

It is not a de Polignac number, because 27784540201 - 2³ = 27784540193 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (27784540241) 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, 1005196 + ... + 1032466.

It is an arithmetic number, because the mean of its divisors is an integer number (1977329088).

Almost surely, 2^27784540201 is an apocalyptic number.

It is an amenable number.

27784540201 is a deficient number, since it is larger than the sum of its proper divisors (3852725207).

27784540201 is a wasteful number, since it uses less digits than its factorization.

27784540201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31332.

The product of its (nonzero) digits is 125440, while the sum is 40.

The spelling of 27784540201 in words is "twenty-seven billion, seven hundred eighty-four million, five hundred forty thousand, two hundred one".