20356036039 has 4 divisors (see below), whose sum is σ = 20372986480. Its totient is φ = 20339085600.

The previous prime is 20356036037. The next prime is 20356036087. The reversal of 20356036039 is 93063065302.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 93063065302 = 2 ⋅46531532651.

It is a cyclic number.

It is not a de Polignac number, because 20356036039 - 2¹ = 20356036037 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20356035989 and 20356036007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20356036031) 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, 8473419 + ... + 8475820.

It is an arithmetic number, because the mean of its divisors is an integer number (5093246620).

Almost surely, 2^20356036039 is an apocalyptic number.

20356036039 is a deficient number, since it is larger than the sum of its proper divisors (16950441).

20356036039 is a wasteful number, since it uses less digits than its factorization.

20356036039 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16950440.

The product of its (nonzero) digits is 87480, while the sum is 37.

The spelling of 20356036039 in words is "twenty billion, three hundred fifty-six million, thirty-six thousand, thirty-nine".