27203451161 has 4 divisors (see below), whose sum is σ = 27203825424. Its totient is φ = 27203076900.

The previous prime is 27203451113. The next prime is 27203451179. The reversal of 27203451161 is 16115430272.

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 27203451161 - 2¹⁴ = 27203434777 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (27203151161) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 39035 + ... + 236496.

It is an arithmetic number, because the mean of its divisors is an integer number (6800956356).

Almost surely, 2^27203451161 is an apocalyptic number.

It is an amenable number.

27203451161 is a deficient number, since it is larger than the sum of its proper divisors (374263).

27203451161 is an equidigital number, since it uses as much as digits as its factorization.

27203451161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 374262.

The product of its (nonzero) digits is 10080, while the sum is 32.

The spelling of 27203451161 in words is "twenty-seven billion, two hundred three million, four hundred fifty-one thousand, one hundred sixty-one".