128598796519 has 2 divisors, whose sum is σ = 128598796520. Its totient is φ = 128598796518.

The previous prime is 128598796517. The next prime is 128598796567. The reversal of 128598796519 is 915697895821.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 128598796519 - 2¹ = 128598796517 is a prime.

It is a super-2 number, since 2×128598796519² (a number of 23 digits) contains 22 as substring.

Together with 128598796517, 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 (128598796517) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 64299398259 + 64299398260.

It is an arithmetic number, because the mean of its divisors is an integer number (64299398260).

Almost surely, 2^128598796519 is an apocalyptic number.

128598796519 is a deficient number, since it is larger than the sum of its proper divisors (1).

128598796519 is an equidigital number, since it uses as much as digits as its factorization.

128598796519 is an evil number, because the sum of its binary digits is even.

The product of its digits is 97977600, while the sum is 70.

The spelling of 128598796519 in words is "one hundred twenty-eight billion, five hundred ninety-eight million, seven hundred ninety-six thousand, five hundred nineteen".