4121268520 has 32 divisors (see below), whose sum is σ = 9818317800. Its totient is φ = 1551536128.

The previous prime is 4121268467. The next prime is 4121268521. The reversal of 4121268520 is 258621214.

It can be written as a sum of positive squares in 4 ways, for example, as 3372589476 + 748679044 = 58074^2 + 27362^2 .

It is not an unprimeable number, because it can be changed into a prime (4121268521) 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, 3029665 + ... + 3031024.

Almost surely, 2^4121268520 is an apocalyptic number.

4121268520 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

4121268520 is an abundant number, since it is smaller than the sum of its proper divisors (5697049280).

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

4121268520 is a wasteful number, since it uses less digits than its factorization.

4121268520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6060717 (or 6060713 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 31.

The square root of 4121268520 is about 64197.1067883904. The cubic root of 4121268520 is about 1603.2834291988.

Adding to 4121268520 its reverse (258621214), we get a palindrome (4379889734).

The spelling of 4121268520 in words is "four billion, one hundred twenty-one million, two hundred sixty-eight thousand, five hundred twenty".