16513753819 has 2 divisors, whose sum is σ = 16513753820. Its totient is φ = 16513753818.

The previous prime is 16513753793. The next prime is 16513753871. The reversal of 16513753819 is 91835731561.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 16513753819 - 2⁹ = 16513753307 is a prime.

It is a super-2 number, since 2×16513753819² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (16513753219) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8256876909 + 8256876910.

It is an arithmetic number, because the mean of its divisors is an integer number (8256876910).

Almost surely, 2^16513753819 is an apocalyptic number.

16513753819 is a deficient number, since it is larger than the sum of its proper divisors (1).

16513753819 is an equidigital number, since it uses as much as digits as its factorization.

16513753819 is an evil number, because the sum of its binary digits is even.

The product of its digits is 680400, while the sum is 49.

The spelling of 16513753819 in words is "sixteen billion, five hundred thirteen million, seven hundred fifty-three thousand, eight hundred nineteen".