4121988738 has 32 divisors (see below), whose sum is σ = 9426914304. Its totient is φ = 1177057872.

The previous prime is 4121988721. The next prime is 4121988757. The reversal of 4121988738 is 8378891214.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 52131 + ... + 104697.

It is an arithmetic number, because the mean of its divisors is an integer number (294591072).

Almost surely, 2^4121988738 is an apocalyptic number.

4121988738 is an abundant number, since it is smaller than the sum of its proper divisors (5304925566).

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

4121988738 is a wasteful number, since it uses less digits than its factorization.

4121988738 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54446.

The product of its digits is 774144, while the sum is 51.

The square root of 4121988738 is about 64202.7159705880. The cubic root of 4121988738 is about 1603.3768184325.

The spelling of 4121988738 in words is "four billion, one hundred twenty-one million, nine hundred eighty-eight thousand, seven hundred thirty-eight".