20367215039 has 4 divisors (see below), whose sum is σ = 20612603256. Its totient is φ = 20121826824.

The previous prime is 20367215021. The next prime is 20367215051. The reversal of 20367215039 is 93051276302.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 20367215039 - 2⁸ = 20367214783 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20367214993 and 20367215011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20367215059) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 122693984 + ... + 122694149.

It is an arithmetic number, because the mean of its divisors is an integer number (5153150814).

Almost surely, 2^20367215039 is an apocalyptic number.

20367215039 is a deficient number, since it is larger than the sum of its proper divisors (245388217).

20367215039 is an equidigital number, since it uses as much as digits as its factorization.

20367215039 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 245388216.

The product of its (nonzero) digits is 68040, while the sum is 38.

The spelling of 20367215039 in words is "twenty billion, three hundred sixty-seven million, two hundred fifteen thousand, thirty-nine".