4109788121 has 2 divisors, whose sum is σ = 4109788122. Its totient is φ = 4109788120.

The previous prime is 4109788049. The next prime is 4109788139. The reversal of 4109788121 is 1218879014.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4108810000 + 978121 = 64100^2 + 989^2 .

It is a cyclic number.

It is not a de Polignac number, because 4109788121 - 2¹⁴ = 4109771737 is a prime.

It is not a weakly prime, because it can be changed into another prime (4109788181) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2054894060 + 2054894061.

It is an arithmetic number, because the mean of its divisors is an integer number (2054894061).

Almost surely, 2^4109788121 is an apocalyptic number.

It is an amenable number.

4109788121 is a deficient number, since it is larger than the sum of its proper divisors (1).

4109788121 is an equidigital number, since it uses as much as digits as its factorization.

4109788121 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 32256, while the sum is 41.

The square root of 4109788121 is about 64107.6291949718. The cubic root of 4109788121 is about 1601.7933175119.

The spelling of 4109788121 in words is "four billion, one hundred nine million, seven hundred eighty-eight thousand, one hundred twenty-one".