20472436039 has 8 divisors (see below), whose sum is σ = 22450498560. Its totient is φ = 18513862200.

The previous prime is 20472436013. The next prime is 20472436043. The reversal of 20472436039 is 93063427402.

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 20472436039 - 2⁷ = 20472435911 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20472435992 and 20472436010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20472436139) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 4869969 + ... + 4874170.

It is an arithmetic number, because the mean of its divisors is an integer number (2806312320).

Almost surely, 2^20472436039 is an apocalyptic number.

20472436039 is a deficient number, since it is larger than the sum of its proper divisors (1978062521).

20472436039 is a wasteful number, since it uses less digits than its factorization.

20472436039 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9744341.

The product of its (nonzero) digits is 217728, while the sum is 40.

The spelling of 20472436039 in words is "twenty billion, four hundred seventy-two million, four hundred thirty-six thousand, thirty-nine".