20338671739 has 8 divisors (see below), whose sum is σ = 20602112960. Its totient is φ = 20075380416.

The previous prime is 20338671721. The next prime is 20338671791. The reversal of 20338671739 is 93717683302.

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 20338671739 - 2⁵ = 20338671707 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20338671692 and 20338671701.

It is not an unprimeable number, because it can be changed into a prime (20338671709) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 249799 + ... + 321055.

It is an arithmetic number, because the mean of its divisors is an integer number (2575264120).

Almost surely, 2^20338671739 is an apocalyptic number.

20338671739 is a deficient number, since it is larger than the sum of its proper divisors (263441221).

20338671739 is an equidigital number, since it uses as much as digits as its factorization.

20338671739 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74949.

The product of its (nonzero) digits is 1143072, while the sum is 49.

The spelling of 20338671739 in words is "twenty billion, three hundred thirty-eight million, six hundred seventy-one thousand, seven hundred thirty-nine".