4136940865 has 4 divisors (see below), whose sum is σ = 4964329044. Its totient is φ = 3309552688.

The previous prime is 4136940823. The next prime is 4136940901. The reversal of 4136940865 is 5680496314.

4136940865 is digitally balanced in base 2, 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 2140727824 + 1996213041 = 46268^2 + 44679^2 .

It is a cyclic number.

It is not a de Polignac number, because 4136940865 - 2¹⁷ = 4136809793 is a prime.

It is a super-2 number, since 2×4136940865² = 34228559441013896450, which contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 413694082 + ... + 413694091.

It is an arithmetic number, because the mean of its divisors is an integer number (1241082261).

Almost surely, 2^4136940865 is an apocalyptic number.

It is an amenable number.

4136940865 is a deficient number, since it is larger than the sum of its proper divisors (827388179).

4136940865 is an equidigital number, since it uses as much as digits as its factorization.

4136940865 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 827388178.

The product of its (nonzero) digits is 622080, while the sum is 46.

The square root of 4136940865 is about 64319.0552247155. The cubic root of 4136940865 is about 1605.3131786001.

The spelling of 4136940865 in words is "four billion, one hundred thirty-six million, nine hundred forty thousand, eight hundred sixty-five".