3640058640409 has 4 divisors (see below), whose sum is σ = 3654560866320. Its totient is φ = 3625556414500.

The previous prime is 3640058640391. The next prime is 3640058640467. The reversal of 3640058640409 is 9040468500463.

3640058640409 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, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 3640058640409 - 2⁵ = 3640058640377 is a prime.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3640058641409) 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, 7251112579 + ... + 7251113080.

It is an arithmetic number, because the mean of its divisors is an integer number (913640216580).

Almost surely, 2^{3640058640409} is an apocalyptic number.

It is an amenable number.

3640058640409 is a deficient number, since it is larger than the sum of its proper divisors (14502225911).

3640058640409 is a wasteful number, since it uses less digits than its factorization.

3640058640409 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14502225910.

The product of its (nonzero) digits is 2488320, while the sum is 49.

The spelling of 3640058640409 in words is "three trillion, six hundred forty billion, fifty-eight million, six hundred forty thousand, four hundred nine".