16487121239 has 8 divisors (see below), whose sum is σ = 16514578080. Its totient is φ = 16459687296.

The previous prime is 16487121221. The next prime is 16487121253. The reversal of 16487121239 is 93212178461.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16487121239 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 16487121239.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16487120239) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1953182 + ... + 1961604.

It is an arithmetic number, because the mean of its divisors is an integer number (2064322260).

Almost surely, 2^16487121239 is an apocalyptic number.

16487121239 is a deficient number, since it is larger than the sum of its proper divisors (27456841).

16487121239 is an equidigital number, since it uses as much as digits as its factorization.

16487121239 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11449.

The product of its digits is 145152, while the sum is 44.

The spelling of 16487121239 in words is "sixteen billion, four hundred eighty-seven million, one hundred twenty-one thousand, two hundred thirty-nine".