4227072792161 has 4 divisors (see below), whose sum is σ = 4227080233152. Its totient is φ = 4227065351172.

The previous prime is 4227072792157. The next prime is 4227072792169. The reversal of 4227072792161 is 1612972707224.

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 4227072792161 - 2² = 4227072792157 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4227072792169) 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, 2790965 + ... + 4030338.

It is an arithmetic number, because the mean of its divisors is an integer number (1056770058288).

Almost surely, 2^{4227072792161} is an apocalyptic number.

It is an amenable number.

4227072792161 is a deficient number, since it is larger than the sum of its proper divisors (7440991).

4227072792161 is an equidigital number, since it uses as much as digits as its factorization.

4227072792161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7440990.

The product of its (nonzero) digits is 1185408, while the sum is 50.

The spelling of 4227072792161 in words is "four trillion, two hundred twenty-seven billion, seventy-two million, seven hundred ninety-two thousand, one hundred sixty-one".