4121237728 has 12 divisors (see below), whose sum is σ = 8113686840. Its totient is φ = 2060618848.

The previous prime is 4121237719. The next prime is 4121237749. The reversal of 4121237728 is 8277321214.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 64394308 + ... + 64394371.

It is an arithmetic number, because the mean of its divisors is an integer number (676140570).

Almost surely, 2^4121237728 is an apocalyptic number.

It is an amenable number.

4121237728 is a deficient number, since it is larger than the sum of its proper divisors (3992449112).

4121237728 is a wasteful number, since it uses less digits than its factorization.

4121237728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128788689 (or 128788681 counting only the distinct ones).

The product of its digits is 37632, while the sum is 37.

The square root of 4121237728 is about 64196.8669640505. The cubic root of 4121237728 is about 1603.2794362189.

The spelling of 4121237728 in words is "four billion, one hundred twenty-one million, two hundred thirty-seven thousand, seven hundred twenty-eight".