16344087887 has 8 divisors (see below), whose sum is σ = 16619247312. Its totient is φ = 16069161600.

The previous prime is 16344087883. The next prime is 16344087889. The reversal of 16344087887 is 78878044361.

It is a happy number.

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 16344087887 - 2² = 16344087883 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16344087883) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 86087 + ... + 200247.

It is an arithmetic number, because the mean of its divisors is an integer number (2077405914).

Almost surely, 2^16344087887 is an apocalyptic number.

16344087887 is a deficient number, since it is larger than the sum of its proper divisors (275159425).

16344087887 is a wasteful number, since it uses less digits than its factorization.

16344087887 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 116569.

The product of its (nonzero) digits is 7225344, while the sum is 56.

The spelling of 16344087887 in words is "sixteen billion, three hundred forty-four million, eighty-seven thousand, eight hundred eighty-seven".