4121536412 has 72 divisors (see below), whose sum is σ = 8818097904. Its totient is φ = 1678537728.

The previous prime is 4121536379. The next prime is 4121536417. The reversal of 4121536412 is 2146351214.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4121536417) 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 23 ways as a sum of consecutive naturals, for example, 305228 + ... + 318444.

It is an arithmetic number, because the mean of its divisors is an integer number (122473582).

Almost surely, 2^4121536412 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 4121536412, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4409048952).

4121536412 is an abundant number, since it is smaller than the sum of its proper divisors (4696561492).

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

4121536412 is a wasteful number, since it uses less digits than its factorization.

4121536412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13315 (or 13306 counting only the distinct ones).

The product of its digits is 5760, while the sum is 29.

The square root of 4121536412 is about 64199.1932348063. The cubic root of 4121536412 is about 1603.3181674916.

Adding to 4121536412 its reverse (2146351214), we get a palindrome (6267887626).

The spelling of 4121536412 in words is "four billion, one hundred twenty-one million, five hundred thirty-six thousand, four hundred twelve".