19395214356 has 96 divisors (see below), whose sum is σ = 53908062208. Its totient is φ = 5310593280.

The previous prime is 19395214339. The next prime is 19395214381. The reversal of 19395214356 is 65341259391.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 232056 + ... + 304368.

Almost surely, 2^19395214356 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 19395214356, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26954031104).

19395214356 is an abundant number, since it is smaller than the sum of its proper divisors (34512847852).

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

19395214356 is a wasteful number, since it uses less digits than its factorization.

19395214356 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72461 (or 72459 counting only the distinct ones).

The product of its digits is 874800, while the sum is 48.

The spelling of 19395214356 in words is "nineteen billion, three hundred ninety-five million, two hundred fourteen thousand, three hundred fifty-six".