19281820102 has 8 divisors (see below), whose sum is σ = 28942558200. Its totient is φ = 9634300704.

The previous prime is 19281820097. The next prime is 19281820109. The reversal of 19281820102 is 20102818291.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19281820109) 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, 3301027 + ... + 3306862.

It is an arithmetic number, because the mean of its divisors is an integer number (3617819775).

Almost surely, 2^19281820102 is an apocalyptic number.

19281820102 is a deficient number, since it is larger than the sum of its proper divisors (9660738098).

19281820102 is a wasteful number, since it uses less digits than its factorization.

19281820102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6609350.

The product of its (nonzero) digits is 4608, while the sum is 34.

The spelling of 19281820102 in words is "nineteen billion, two hundred eighty-one million, eight hundred twenty thousand, one hundred two".