2013445512 has 112 divisors (see below), whose sum is σ = 6095857740. Its totient is φ = 619498368.

The previous prime is 2013445481. The next prime is 2013445513. The reversal of 2013445512 is 2155443102.

2013445512 is a `hidden beast` number, since 201 + 3 + 4 + 455 + 1 + 2 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 1917914436 + 95531076 = 43794^2 + 9774^2 .

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (2013445513) by changing a digit.

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 27 ways as a sum of consecutive naturals, for example, 62538 + ... + 89094.

Almost surely, 2^2013445512 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2013445512, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3047928870).

2013445512 is an abundant number, since it is smaller than the sum of its proper divisors (4082412228).

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

2013445512 is a wasteful number, since it uses less digits than its factorization.

2013445512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26594 (or 26575 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 27.

The square root of 2013445512 is about 44871.4331395822. The cubic root of 2013445512 is about 1262.7381270528.

Adding to 2013445512 its reverse (2155443102), we get a palindrome (4168888614).

The spelling of 2013445512 in words is "two billion, thirteen million, four hundred forty-five thousand, five hundred twelve".