4976809909 has 4 divisors (see below), whose sum is σ = 4977198304. Its totient is φ = 4976421516.

The previous prime is 4976809861. The next prime is 4976809951. The reversal of 4976809909 is 9099086794.

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 4976809909 - 2¹³ = 4976801717 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 (4976809979) 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, 174297 + ... + 200830.

It is an arithmetic number, because the mean of its divisors is an integer number (1244299576).

Almost surely, 2^4976809909 is an apocalyptic number.

It is an amenable number.

4976809909 is a deficient number, since it is larger than the sum of its proper divisors (388395).

4976809909 is a wasteful number, since it uses less digits than its factorization.

4976809909 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 388394.

The product of its (nonzero) digits is 8817984, while the sum is 61.

The square root of 4976809909 is about 70546.5088363698. The cubic root of 4976809909 is about 1707.3282158526.

The spelling of 4976809909 in words is "four billion, nine hundred seventy-six million, eight hundred nine thousand, nine hundred nine".