4161249969 has 8 divisors (see below), whose sum is σ = 5551322112. Its totient is φ = 2772672240.

The previous prime is 4161249943. The next prime is 4161249971. The reversal of 4161249969 is 9699421614.

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

It is not a de Polignac number, because 4161249969 - 2²¹ = 4159152817 is a prime.

It is a super-2 number, since 2×4161249969² = 34632002609005001922, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (4161248969) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 367089 + ... + 378254.

It is an arithmetic number, because the mean of its divisors is an integer number (693915264).

Almost surely, 2^4161249969 is an apocalyptic number.

It is an amenable number.

4161249969 is a deficient number, since it is larger than the sum of its proper divisors (1390072143).

4161249969 is a wasteful number, since it uses less digits than its factorization.

4161249969 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 747207.

The product of its digits is 839808, while the sum is 51.

The square root of 4161249969 is about 64507.7512319256. The cubic root of 4161249969 is about 1608.4513700788.

The spelling of 4161249969 in words is "four billion, one hundred sixty-one million, two hundred forty-nine thousand, nine hundred sixty-nine".