20648967419 has 2 divisors, whose sum is σ = 20648967420. Its totient is φ = 20648967418.

The previous prime is 20648967373. The next prime is 20648967463. The reversal of 20648967419 is 91476984602.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20648967419 - 2¹⁶ = 20648901883 is a prime.

It is a super-2 number, since 2×20648967419² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (20648967319) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10324483709 + 10324483710.

It is an arithmetic number, because the mean of its divisors is an integer number (10324483710).

Almost surely, 2^20648967419 is an apocalyptic number.

20648967419 is a deficient number, since it is larger than the sum of its proper divisors (1).

20648967419 is an equidigital number, since it uses as much as digits as its factorization.

20648967419 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5225472, while the sum is 56.

The spelling of 20648967419 in words is "twenty billion, six hundred forty-eight million, nine hundred sixty-seven thousand, four hundred nineteen".