8474129909 has 4 divisors (see below), whose sum is σ = 9684719904. Its totient is φ = 7263539916.

The previous prime is 8474129897. The next prime is 8474129957. The reversal of 8474129909 is 9099214748.

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 8474129909 - 2¹⁶ = 8474064373 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8474129999) 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, 605294987 + ... + 605295000.

It is an arithmetic number, because the mean of its divisors is an integer number (2421179976).

Almost surely, 2^8474129909 is an apocalyptic number.

It is an amenable number.

8474129909 is a deficient number, since it is larger than the sum of its proper divisors (1210589995).

8474129909 is a wasteful number, since it uses less digits than its factorization.

8474129909 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1210589994.

The product of its (nonzero) digits is 1306368, while the sum is 53.

The square root of 8474129909 is about 92055.0373906828. The cubic root of 8474129909 is about 2038.7550000623.

The spelling of 8474129909 in words is "eight billion, four hundred seventy-four million, one hundred twenty-nine thousand, nine hundred nine".