3809546565138 has 48 divisors (see below), whose sum is σ = 8449727416416. Its totient is φ = 1239765912000.

The previous prime is 3809546565133. The next prime is 3809546565217. The reversal of 3809546565138 is 8315656459083.

It is a happy number.

3809546565138 is a `hidden beast` number, since 3 + 8 + 0 + 9 + 54 + 6 + 565 + 13 + 8 = 666.

It is not an unprimeable number, because it can be changed into a prime (3809546565133) 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, 649006 + ... + 2835542.

It is an arithmetic number, because the mean of its divisors is an integer number (176035987842).

Almost surely, 2^{3809546565138} is an apocalyptic number.

3809546565138 is an abundant number, since it is smaller than the sum of its proper divisors (4640180851278).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3809546565138 is a wasteful number, since it uses less digits than its factorization.

3809546565138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2188839 (or 2188836 counting only the distinct ones).

The product of its (nonzero) digits is 93312000, while the sum is 63.

The spelling of 3809546565138 in words is "three trillion, eight hundred nine billion, five hundred forty-six million, five hundred sixty-five thousand, one hundred thirty-eight".