3765636804113 has 4 divisors (see below), whose sum is σ = 3836686555188. Its totient is φ = 3694587053040.

The previous prime is 3765636804109. The next prime is 3765636804173. The reversal of 3765636804113 is 3114086365673.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2985545104129 + 780091699984 = 1727873^2 + 883228^2 .

It is not a de Polignac number, because 3765636804113 - 2² = 3765636804109 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (53), and also a Moran number because the ratio is a prime number: 71049751021 = 3765636804113 / (3 + 7 + 6 + 5 + 6 + 3 + 6 + 8 + 0 + 4 + 1 + 1 + 3).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3765636804173) 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, 35524875458 + ... + 35524875563.

It is an arithmetic number, because the mean of its divisors is an integer number (959171638797).

Almost surely, 2^{3765636804113} is an apocalyptic number.

It is an amenable number.

3765636804113 is a deficient number, since it is larger than the sum of its proper divisors (71049751075).

3765636804113 is an equidigital number, since it uses as much as digits as its factorization.

3765636804113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71049751074.

The product of its (nonzero) digits is 6531840, while the sum is 53.

The spelling of 3765636804113 in words is "three trillion, seven hundred sixty-five billion, six hundred thirty-six million, eight hundred four thousand, one hundred thirteen".