3806945465 has 4 divisors (see below), whose sum is σ = 4568334564. Its totient is φ = 3045556368.

The previous prime is 3806945419. The next prime is 3806945477. The reversal of 3806945465 is 5645496083.

3806945465 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 2193236224 + 1613709241 = 46832^2 + 40171^2 .

It is a cyclic number.

It is not a de Polignac number, because 3806945465 - 2⁸ = 3806945209 is a prime.

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, 380694542 + ... + 380694551.

It is an arithmetic number, because the mean of its divisors is an integer number (1142083641).

Almost surely, 2^3806945465 is an apocalyptic number.

It is an amenable number.

3806945465 is a deficient number, since it is larger than the sum of its proper divisors (761389099).

3806945465 is an equidigital number, since it uses as much as digits as its factorization.

3806945465 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 761389098.

The product of its (nonzero) digits is 3110400, while the sum is 50.

The square root of 3806945465 is about 61700.4494716205. The cubic root of 3806945465 is about 1561.4409031043.

The spelling of 3806945465 in words is "three billion, eight hundred six million, nine hundred forty-five thousand, four hundred sixty-five".