20950980326 has 4 divisors (see below), whose sum is σ = 31426470492. Its totient is φ = 10475490162.

The previous prime is 20950980317. The next prime is 20950980331. The reversal of 20950980326 is 62308905902.

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

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 5237745080 + ... + 5237745083.

It is an arithmetic number, because the mean of its divisors is an integer number (7856617623).

Almost surely, 2^20950980326 is an apocalyptic number.

20950980326 is a deficient number, since it is larger than the sum of its proper divisors (10475490166).

20950980326 is a wasteful number, since it uses less digits than its factorization.

20950980326 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10475490165.

The product of its (nonzero) digits is 233280, while the sum is 44.

The spelling of 20950980326 in words is "twenty billion, nine hundred fifty million, nine hundred eighty thousand, three hundred twenty-six".