19798627305599 has 4 divisors (see below), whose sum is σ = 19798722635880. Its totient is φ = 19798531975320.

The previous prime is 19798627305593. The next prime is 19798627305601. The reversal of 19798627305599 is 99550372689791.

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 19798627305599 - 2²⁰ = 19798626257023 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19798627305593) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 47352932 + ... + 47769209.

It is an arithmetic number, because the mean of its divisors is an integer number (4949680658970).

Almost surely, 2^{19798627305599} is an apocalyptic number.

19798627305599 is a deficient number, since it is larger than the sum of its proper divisors (95330281).

19798627305599 is an equidigital number, since it uses as much as digits as its factorization.

19798627305599 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95330280.

The product of its (nonzero) digits is 2314720800, while the sum is 80.

The spelling of 19798627305599 in words is "nineteen trillion, seven hundred ninety-eight billion, six hundred twenty-seven million, three hundred five thousand, five hundred ninety-nine".