39811083138 has 54 divisors (see below), whose sum is σ = 87163619907. Its totient is φ = 13132377960.

The previous prime is 39811083113. The next prime is 39811083187. The reversal of 39811083138 is 83138011893.

It can be written as a sum of positive squares in only one way, i.e., 19905541569 + 19905541569 = 141087^2 + 141087^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=141087.

It is a junction number, because it is equal to n+sod(n) for n = 39811083093 and 39811083102.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 110894203 + ... + 110894561.

Almost surely, 2^39811083138 is an apocalyptic number.

39811083138 is an abundant number, since it is smaller than the sum of its proper divisors (47352536769).

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

39811083138 is an equidigital number, since it uses as much as digits as its factorization.

39811083138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 988 (or 495 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 45.

The spelling of 39811083138 in words is "thirty-nine billion, eight hundred eleven million, eighty-three thousand, one hundred thirty-eight".