16287209890 has 64 divisors (see below), whose sum is σ = 35495449344. Its totient is φ = 5252825088.

The previous prime is 16287209843. The next prime is 16287209899. The reversal of 16287209890 is 9890278261.

16287209890 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Smith number, since the sum of its digits (52) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (16287209899) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3730849 + ... + 3735211.

It is an arithmetic number, because the mean of its divisors is an integer number (554616396).

Almost surely, 2^16287209890 is an apocalyptic number.

16287209890 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

16287209890 is an abundant number, since it is smaller than the sum of its proper divisors (19208239454).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

16287209890 is a wasteful number, since it uses less digits than its factorization.

16287209890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7531.

The product of its (nonzero) digits is 870912, while the sum is 52.

The spelling of 16287209890 in words is "sixteen billion, two hundred eighty-seven million, two hundred nine thousand, eight hundred ninety".