20214911389 has 4 divisors (see below), whose sum is σ = 20218208256. Its totient is φ = 20211614524.

The previous prime is 20214911377. The next prime is 20214911401. The reversal of 20214911389 is 98311941202.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (20214911377) and next prime (20214911401).

It is a cyclic number.

It is not a de Polignac number, because 20214911389 - 2¹³ = 20214903197 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20214917389) 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, 1639219 + ... + 1651504.

It is an arithmetic number, because the mean of its divisors is an integer number (5054552064).

Almost surely, 2^20214911389 is an apocalyptic number.

It is an amenable number.

20214911389 is a deficient number, since it is larger than the sum of its proper divisors (3296867).

20214911389 is an equidigital number, since it uses as much as digits as its factorization.

20214911389 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3296866.

The product of its (nonzero) digits is 31104, while the sum is 40.

The spelling of 20214911389 in words is "twenty billion, two hundred fourteen million, nine hundred eleven thousand, three hundred eighty-nine".