4120736509 has 4 divisors (see below), whose sum is σ = 4232107804. Its totient is φ = 4009365216.

The previous prime is 4120736507. The next prime is 4120736513. The reversal of 4120736509 is 9056370214.

4120736509 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1517492025 + 2603244484 = 38955^2 + 51022^2 .

It is a cyclic number.

It is not a de Polignac number, because 4120736509 - 2¹ = 4120736507 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (37), and also a Moran number because the ratio is a prime number: 111371257 = 4120736509 / (4 + 1 + 2 + 0 + 7 + 3 + 6 + 5 + 0 + 9).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4120736507) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 55685592 + ... + 55685665.

It is an arithmetic number, because the mean of its divisors is an integer number (1058026951).

Almost surely, 2^4120736509 is an apocalyptic number.

It is an amenable number.

4120736509 is a deficient number, since it is larger than the sum of its proper divisors (111371295).

4120736509 is a wasteful number, since it uses less digits than its factorization.

4120736509 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111371294.

The product of its (nonzero) digits is 45360, while the sum is 37.

The square root of 4120736509 is about 64192.9630800760. The cubic root of 4120736509 is about 1603.2144374048.

The spelling of 4120736509 in words is "four billion, one hundred twenty million, seven hundred thirty-six thousand, five hundred nine".