19998282111527 has 8 divisors (see below), whose sum is σ = 20002318348800. Its totient is φ = 19994246194104.

The previous prime is 19998282111523. The next prime is 19998282111539. The reversal of 19998282111527 is 72511128289991.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 19998282111527 - 2² = 19998282111523 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 (19998282111523) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 153674474 + ... + 153804552.

It is an arithmetic number, because the mean of its divisors is an integer number (2500289793600).

Almost surely, 2^{19998282111527} is an apocalyptic number.

19998282111527 is a deficient number, since it is larger than the sum of its proper divisors (4036237273).

19998282111527 is a wasteful number, since it uses less digits than its factorization.

19998282111527 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 159925.

The product of its digits is 13063680, while the sum is 65.

The spelling of 19998282111527 in words is "nineteen trillion, nine hundred ninety-eight billion, two hundred eighty-two million, one hundred eleven thousand, five hundred twenty-seven".