4376622161 has 4 divisors (see below), whose sum is σ = 4391559732. Its totient is φ = 4361684592.

The previous prime is 4376622157. The next prime is 4376622163. The reversal of 4376622161 is 1612266734.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 3380841025 + 995781136 = 58145^2 + 31556^2 .

It is a cyclic number.

It is not a de Polignac number, because 4376622161 - 2² = 4376622157 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4376622163) 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, 7468346 + ... + 7468931.

It is an arithmetic number, because the mean of its divisors is an integer number (1097889933).

Almost surely, 2^4376622161 is an apocalyptic number.

It is an amenable number.

4376622161 is a deficient number, since it is larger than the sum of its proper divisors (14937571).

4376622161 is a wasteful number, since it uses less digits than its factorization.

4376622161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14937570.

The product of its digits is 72576, while the sum is 38.

The square root of 4376622161 is about 66156.0440247148. The cubic root of 4376622161 is about 1635.7352709237.

Adding to 4376622161 its reverse (1612266734), we get a palindrome (5988888895).

The spelling of 4376622161 in words is "four billion, three hundred seventy-six million, six hundred twenty-two thousand, one hundred sixty-one".