16487196887 has 8 divisors (see below), whose sum is σ = 19950893856. Its totient is φ = 13300595712.

The previous prime is 16487196863. The next prime is 16487196889. The reversal of 16487196887 is 78869178461.

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 16487196887 - 2⁸ = 16487196631 is a prime.

It is a super-2 number, since 2×16487196887² (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 (16487196889) 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, 69273818 + ... + 69274055.

It is an arithmetic number, because the mean of its divisors is an integer number (2493861732).

Almost surely, 2^16487196887 is an apocalyptic number.

16487196887 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

16487196887 is a deficient number, since it is larger than the sum of its proper divisors (3463696969).

16487196887 is a wasteful number, since it uses less digits than its factorization.

16487196887 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 138547897.

The product of its digits is 32514048, while the sum is 65.

The spelling of 16487196887 in words is "sixteen billion, four hundred eighty-seven million, one hundred ninety-six thousand, eight hundred eighty-seven".