12598065899 has 4 divisors (see below), whose sum is σ = 12598406760. Its totient is φ = 12597725040.

The previous prime is 12598065871. The next prime is 12598065959. The reversal of 12598065899 is 99856089521.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 12598065899 - 2²⁴ = 12581288683 is a prime.

It is a super-2 number, since 2×12598065899² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12598065829) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 107162 + ... + 191519.

It is an arithmetic number, because the mean of its divisors is an integer number (3149601690).

Almost surely, 2^12598065899 is an apocalyptic number.

12598065899 is a deficient number, since it is larger than the sum of its proper divisors (340861).

12598065899 is an equidigital number, since it uses as much as digits as its factorization.

12598065899 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 340860.

The product of its (nonzero) digits is 13996800, while the sum is 62.

The spelling of 12598065899 in words is "twelve billion, five hundred ninety-eight million, sixty-five thousand, eight hundred ninety-nine".