4126788145 has 4 divisors (see below), whose sum is σ = 4952145780. Its totient is φ = 3301430512.

The previous prime is 4126788143. The next prime is 4126788181. The reversal of 4126788145 is 5418876214.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5418876214 = 2 ⋅2709438107.

It can be written as a sum of positive squares in 2 ways, for example, as 3195867024 + 930921121 = 56532^2 + 30511^2 .

It is a cyclic number.

It is not a de Polignac number, because 4126788145 - 2¹ = 4126788143 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 4126788095 and 4126788104.

It is not an unprimeable number, because it can be changed into a prime (4126788143) 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 3 ways as a sum of consecutive naturals, for example, 412678810 + ... + 412678819.

It is an arithmetic number, because the mean of its divisors is an integer number (1238036445).

Almost surely, 2^4126788145 is an apocalyptic number.

It is an amenable number.

4126788145 is a deficient number, since it is larger than the sum of its proper divisors (825357635).

4126788145 is an equidigital number, since it uses as much as digits as its factorization.

4126788145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 825357634.

The product of its digits is 430080, while the sum is 46.

The square root of 4126788145 is about 64240.0820749787. The cubic root of 4126788145 is about 1603.9988703680.

The spelling of 4126788145 in words is "four billion, one hundred twenty-six million, seven hundred eighty-eight thousand, one hundred forty-five".