19802554230 has 16 divisors (see below), whose sum is σ = 47526130224. Its totient is φ = 5280681120.

The previous prime is 19802554217. The next prime is 19802554249. The reversal of 19802554230 is 3245520891.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 330042541 + ... + 330042600.

It is an arithmetic number, because the mean of its divisors is an integer number (2970383139).

Almost surely, 2^19802554230 is an apocalyptic number.

19802554230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

19802554230 is an abundant number, since it is smaller than the sum of its proper divisors (27723575994).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

19802554230 is a wasteful number, since it uses less digits than its factorization.

19802554230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 660085151.

The product of its (nonzero) digits is 86400, while the sum is 39.

The spelling of 19802554230 in words is "nineteen billion, eight hundred two million, five hundred fifty-four thousand, two hundred thirty".