16592793421 has 2 divisors, whose sum is σ = 16592793422. Its totient is φ = 16592793420.

The previous prime is 16592793419. The next prime is 16592793463. The reversal of 16592793421 is 12439729561.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9484617321 + 7108176100 = 97389^2 + 84310^2 .

It is a cyclic number.

It is not a de Polignac number, because 16592793421 - 2¹ = 16592793419 is a prime.

Together with 16592793419, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16592793221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8296396710 + 8296396711.

It is an arithmetic number, because the mean of its divisors is an integer number (8296396711).

Almost surely, 2^16592793421 is an apocalyptic number.

It is an amenable number.

16592793421 is a deficient number, since it is larger than the sum of its proper divisors (1).

16592793421 is an equidigital number, since it uses as much as digits as its factorization.

16592793421 is an evil number, because the sum of its binary digits is even.

The product of its digits is 816480, while the sum is 49.

The spelling of 16592793421 in words is "sixteen billion, five hundred ninety-two million, seven hundred ninety-three thousand, four hundred twenty-one".