1936538111201 has 4 divisors (see below), whose sum is σ = 1936562747652. Its totient is φ = 1936513474752.

The previous prime is 1936538111171. The next prime is 1936538111257. The reversal of 1936538111201 is 1021118356391.

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 944822880400 + 991715230801 = 972020^2 + 995849^2 .

It is a cyclic number.

It is not a de Polignac number, because 1936538111201 - 2¹⁴ = 1936538094817 is a prime.

It is a super-2 number, since 2×1936538111201² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1936538114201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12199940 + ... + 12357653.

It is an arithmetic number, because the mean of its divisors is an integer number (484140686913).

Almost surely, 2^{1936538111201} is an apocalyptic number.

It is an amenable number.

1936538111201 is a deficient number, since it is larger than the sum of its proper divisors (24636451).

1936538111201 is an equidigital number, since it uses as much as digits as its factorization.

1936538111201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24636450.

The product of its (nonzero) digits is 38880, while the sum is 41.

The spelling of 1936538111201 in words is "one trillion, nine hundred thirty-six billion, five hundred thirty-eight million, one hundred eleven thousand, two hundred one".