20415433219 has 2 divisors, whose sum is σ = 20415433220. Its totient is φ = 20415433218.

The previous prime is 20415433217. The next prime is 20415433249. The reversal of 20415433219 is 91233451402.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20415433219 - 2¹ = 20415433217 is a prime.

It is a super-2 number, since 2×20415433219² (a number of 21 digits) contains 22 as substring.

Together with 20415433217, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (20415433211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10207716609 + 10207716610.

It is an arithmetic number, because the mean of its divisors is an integer number (10207716610).

Almost surely, 2^20415433219 is an apocalyptic number.

20415433219 is a deficient number, since it is larger than the sum of its proper divisors (1).

20415433219 is an equidigital number, since it uses as much as digits as its factorization.

20415433219 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 25920, while the sum is 34.

The spelling of 20415433219 in words is "twenty billion, four hundred fifteen million, four hundred thirty-three thousand, two hundred nineteen".