20090688339 has 4 divisors (see below), whose sum is σ = 26787584456. Its totient is φ = 13393792224.

The previous prime is 20090688337. The next prime is 20090688377. The reversal of 20090688339 is 93388609002.

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

It is not a de Polignac number, because 20090688339 - 2¹ = 20090688337 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20090688337) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3348448054 + ... + 3348448059.

It is an arithmetic number, because the mean of its divisors is an integer number (6696896114).

Almost surely, 2^20090688339 is an apocalyptic number.

20090688339 is a deficient number, since it is larger than the sum of its proper divisors (6696896117).

20090688339 is an equidigital number, since it uses as much as digits as its factorization.

20090688339 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6696896116.

The product of its (nonzero) digits is 559872, while the sum is 48.

The spelling of 20090688339 in words is "twenty billion, ninety million, six hundred eighty-eight thousand, three hundred thirty-nine".