5266801809 has 24 divisors (see below), whose sum is σ = 8122994880. Its totient is φ = 3280429152.

The previous prime is 5266801801. The next prime is 5266801871. The reversal of 5266801809 is 9081086625.

It is not a de Polignac number, because 5266801809 - 2³ = 5266801801 is a prime.

It is not an unprimeable number, because it can be changed into a prime (5266801801) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 286954 + ... + 304755.

It is an arithmetic number, because the mean of its divisors is an integer number (338458120).

Almost surely, 2^5266801809 is an apocalyptic number.

It is an amenable number.

5266801809 is a deficient number, since it is larger than the sum of its proper divisors (2856193071).

5266801809 is a wasteful number, since it uses less digits than its factorization.

5266801809 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 591781 (or 591778 counting only the distinct ones).

The product of its (nonzero) digits is 207360, while the sum is 45.

The square root of 5266801809 is about 72572.7346115606. The cubic root of 5266801809 is about 1739.8654285541.

The spelling of 5266801809 in words is "five billion, two hundred sixty-six million, eight hundred one thousand, eight hundred nine".