16384049381 has 8 divisors (see below), whose sum is σ = 18744283584. Its totient is φ = 14028729120.

The previous prime is 16384049377. The next prime is 16384049393. The reversal of 16384049381 is 18394048361.

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

It is not a de Polignac number, because 16384049381 - 2² = 16384049377 is a prime.

It is a super-2 number, since 2×16384049381² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16384049321) 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, 1221335 + ... + 1234676.

It is an arithmetic number, because the mean of its divisors is an integer number (2343035448).

Almost surely, 2^16384049381 is an apocalyptic number.

It is an amenable number.

16384049381 is a deficient number, since it is larger than the sum of its proper divisors (2360234203).

16384049381 is an equidigital number, since it uses as much as digits as its factorization.

16384049381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2456971.

The product of its (nonzero) digits is 497664, while the sum is 47.

The spelling of 16384049381 in words is "sixteen billion, three hundred eighty-four million, forty-nine thousand, three hundred eighty-one".