27698380201 has 4 divisors (see below), whose sum is σ = 28088498304. Its totient is φ = 27308262100.

The previous prime is 27698380187. The next prime is 27698380243. The reversal of 27698380201 is 10208389672.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 27698380201 - 2¹⁵ = 27698347433 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (27698380261) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 195058945 + ... + 195059086.

It is an arithmetic number, because the mean of its divisors is an integer number (7022124576).

Almost surely, 2^27698380201 is an apocalyptic number.

It is an amenable number.

27698380201 is a deficient number, since it is larger than the sum of its proper divisors (390118103).

27698380201 is an equidigital number, since it uses as much as digits as its factorization.

27698380201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 390118102.

The product of its (nonzero) digits is 290304, while the sum is 46.

The spelling of 27698380201 in words is "twenty-seven billion, six hundred ninety-eight million, three hundred eighty thousand, two hundred one".