8144371409 has 4 divisors (see below), whose sum is σ = 8151233904. Its totient is φ = 8137508916.

The previous prime is 8144371357. The next prime is 8144371421. The reversal of 8144371409 is 9041734418.

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 8144371409 - 2²⁸ = 7875935953 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8144371009) 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 3 ways as a sum of consecutive naturals, for example, 3429467 + ... + 3431840.

It is an arithmetic number, because the mean of its divisors is an integer number (2037808476).

Almost surely, 2^8144371409 is an apocalyptic number.

It is an amenable number.

8144371409 is a deficient number, since it is larger than the sum of its proper divisors (6862495).

8144371409 is a wasteful number, since it uses less digits than its factorization.

8144371409 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6862494.

The product of its (nonzero) digits is 96768, while the sum is 41.

The square root of 8144371409 is about 90246.1711597783. The cubic root of 8144371409 is about 2011.9592958320.

The spelling of 8144371409 in words is "eight billion, one hundred forty-four million, three hundred seventy-one thousand, four hundred nine".