16381363139 has 8 divisors (see below), whose sum is σ = 17492891520. Its totient is φ = 15306278400.

The previous prime is 16381363129. The next prime is 16381363147. The reversal of 16381363139 is 93136318361.

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 16381363139 - 2⁸ = 16381362883 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 16381363139.

It is not an unprimeable number, because it can be changed into a prime (16381363129) 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, 9109982 + ... + 9111779.

It is an arithmetic number, because the mean of its divisors is an integer number (2186611440).

Almost surely, 2^16381363139 is an apocalyptic number.

16381363139 is a deficient number, since it is larger than the sum of its proper divisors (1111528381).

16381363139 is a wasteful number, since it uses less digits than its factorization.

16381363139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18221821.

The product of its digits is 209952, while the sum is 44.

The spelling of 16381363139 in words is "sixteen billion, three hundred eighty-one million, three hundred sixty-three thousand, one hundred thirty-nine".