16387210369 has 8 divisors (see below), whose sum is σ = 16452467720. Its totient is φ = 16322052096.

The previous prime is 16387210313. The next prime is 16387210387. The reversal of 16387210369 is 96301278361.

It can be written as a sum of positive squares in 4 ways, for example, as 1467809344 + 14919401025 = 38312^2 + 122145^2 .

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 16387210369 - 2¹⁵ = 16387177601 is a prime.

It is a super-2 number, since 2×16387210369² (a number of 21 digits) contains 22 as substring.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16387211369) 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, 315937 + ... + 364129.

It is an arithmetic number, because the mean of its divisors is an integer number (2056558465).

Almost surely, 2^16387210369 is an apocalyptic number.

It is an amenable number.

16387210369 is a deficient number, since it is larger than the sum of its proper divisors (65257351).

16387210369 is a wasteful number, since it uses less digits than its factorization.

16387210369 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49539.

The product of its (nonzero) digits is 326592, while the sum is 46.

The spelling of 16387210369 in words is "sixteen billion, three hundred eighty-seven million, two hundred ten thousand, three hundred sixty-nine".