4161269645 has 8 divisors (see below), whose sum is σ = 5377640856. Its totient is φ = 3072937536.

The previous prime is 4161269633. The next prime is 4161269689. The reversal of 4161269645 is 5469621614.

It can be written as a sum of positive squares in 4 ways, for example, as 924342409 + 3236927236 = 30403^2 + 56894^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 4161269645 - 2⁸ = 4161269389 is a prime.

It is a super-3 number, since 3×4161269645³ (a number of 30 digits) contains 333 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 4161269596 and 4161269605.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 32009702 + ... + 32009831.

It is an arithmetic number, because the mean of its divisors is an integer number (672205107).

Almost surely, 2^4161269645 is an apocalyptic number.

It is an amenable number.

4161269645 is a deficient number, since it is larger than the sum of its proper divisors (1216371211).

4161269645 is a wasteful number, since it uses less digits than its factorization.

4161269645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64019551.

The product of its digits is 311040, while the sum is 44.

The square root of 4161269645 is about 64507.9037405495. The cubic root of 4161269645 is about 1608.4539052017.

The spelling of 4161269645 in words is "four billion, one hundred sixty-one million, two hundred sixty-nine thousand, six hundred forty-five".