4161400509 has 24 divisors (see below), whose sum is σ = 6473812800. Its totient is φ = 2376760680.

The previous prime is 4161400483. The next prime is 4161400513. The reversal of 4161400509 is 9050041614.

It is a happy number.

It is not a de Polignac number, because 4161400509 - 2⁷ = 4161400381 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4161400519) 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 23 ways as a sum of consecutive naturals, for example, 2068314 + ... + 2070324.

It is an arithmetic number, because the mean of its divisors is an integer number (269742200).

Almost surely, 2^4161400509 is an apocalyptic number.

4161400509 is a gapful number since it is divisible by the number (49) formed by its first and last digit.

It is an amenable number.

4161400509 is a deficient number, since it is larger than the sum of its proper divisors (2312412291).

4161400509 is an frugal number, since it uses more digits than its factorization.

4161400509 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4046 (or 2021 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 30.

The square root of 4161400509 is about 64508.9180578934. The cubic root of 4161400509 is about 1608.4707659616.

The spelling of 4161400509 in words is "four billion, one hundred sixty-one million, four hundred thousand, five hundred nine".