2159889512 has 96 divisors (see below), whose sum is σ = 4641114240. Its totient is φ = 933984000.

The previous prime is 2159889461. The next prime is 2159889539.

2159889512 is nontrivially palindromic in base 10.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7969937 + ... + 7970207.

It is an arithmetic number, because the mean of its divisors is an integer number (48344940).

Almost surely, 2^2159889512 is an apocalyptic number.

2159889512 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2159889512, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2320557120).

2159889512 is an abundant number, since it is smaller than the sum of its proper divisors (2481224728).

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

2159889512 is a wasteful number, since it uses less digits than its factorization.

2159889512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 423 (or 372 counting only the distinct ones).

The product of its digits is 518400, while the sum is 50.

The square root of 2159889512 is about 46474.6114776660. The cubic root of 2159889512 is about 1292.6387729785.

The spelling of 2159889512 in words is "two billion, one hundred fifty-nine million, eight hundred eighty-nine thousand, five hundred twelve".