19898932027 has 8 divisors (see below), whose sum is σ = 21687808464. Its totient is φ = 18146939808.

The previous prime is 19898932019. The next prime is 19898932033. The reversal of 19898932027 is 72023989891.

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 19898932027 - 2³ = 19898932019 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (19898932127) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9219928 + ... + 9222085.

It is an arithmetic number, because the mean of its divisors is an integer number (2710976058).

Almost surely, 2^19898932027 is an apocalyptic number.

19898932027 is a deficient number, since it is larger than the sum of its proper divisors (1788876437).

19898932027 is a wasteful number, since it uses less digits than its factorization.

19898932027 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18442109.

The product of its (nonzero) digits is 3919104, while the sum is 58.

The spelling of 19898932027 in words is "nineteen billion, eight hundred ninety-eight million, nine hundred thirty-two thousand, twenty-seven".