19780327361 has 8 divisors (see below), whose sum is σ = 19833061248. Its totient is φ = 19727626000.

The previous prime is 19780327331. The next prime is 19780327379. The reversal of 19780327361 is 16372308791.

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 19780327361 - 2¹⁰ = 19780326337 is a prime.

It is a super-2 number, since 2×19780327361² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (19780327331) 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, 1640846 + ... + 1652856.

It is an arithmetic number, because the mean of its divisors is an integer number (2479132656).

Almost surely, 2^19780327361 is an apocalyptic number.

It is an amenable number.

19780327361 is a deficient number, since it is larger than the sum of its proper divisors (52733887).

19780327361 is a wasteful number, since it uses less digits than its factorization.

19780327361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16263.

The product of its (nonzero) digits is 381024, while the sum is 47.

The spelling of 19780327361 in words is "nineteen billion, seven hundred eighty million, three hundred twenty-seven thousand, three hundred sixty-one".