2036637481817 has 8 divisors (see below), whose sum is σ = 2037655646280. Its totient is φ = 2035619541760.

The previous prime is 2036637481757. The next prime is 2036637481829. The reversal of 2036637481817 is 7181847366302.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 13134076816 + 2023503405001 = 114604^2 + 1422499^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2036637481817 - 2⁸ = 2036637481561 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2036637481217) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19825967 + ... + 19928427.

It is an arithmetic number, because the mean of its divisors is an integer number (254706955785).

Almost surely, 2^{2036637481817} is an apocalyptic number.

It is an amenable number.

2036637481817 is a deficient number, since it is larger than the sum of its proper divisors (1018164463).

2036637481817 is a wasteful number, since it uses less digits than its factorization.

2036637481817 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112203.

The product of its (nonzero) digits is 8128512, while the sum is 56.

The spelling of 2036637481817 in words is "two trillion, thirty-six billion, six hundred thirty-seven million, four hundred eighty-one thousand, eight hundred seventeen".