36538073138 has 18 divisors (see below), whose sum is σ = 63758511261. Its totient is φ = 15658363224.

The previous prime is 36538073129. The next prime is 36538073141. The reversal of 36538073138 is 83137083563.

It can be written as a sum of positive squares in 2 ways, for example, as 30823771489 + 5714301649 = 175567^2 + 75593^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=135163.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 36538073092 and 36538073101.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 1882628 + ... + 1901936.

Almost surely, 2^36538073138 is an apocalyptic number.

36538073138 is a deficient number, since it is larger than the sum of its proper divisors (27220438123).

36538073138 is an frugal number, since it uses more digits than its factorization.

36538073138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38634 (or 19318 counting only the distinct ones).

The product of its (nonzero) digits is 1088640, while the sum is 47.

The spelling of 36538073138 in words is "thirty-six billion, five hundred thirty-eight million, seventy-three thousand, one hundred thirty-eight".