3639350659045 has 4 divisors (see below), whose sum is σ = 4367220790860. Its totient is φ = 2911480527232.

The previous prime is 3639350658989. The next prime is 3639350659069. The reversal of 3639350659045 is 5409560539363.

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 1636882271649 + 2002468387396 = 1279407^2 + 1415086^2 .

It is a cyclic number.

It is not a de Polignac number, because 3639350659045 - 2²⁷ = 3639216441317 is a prime.

It is a Smith number, since the sum of its digits (58) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent 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, 363935065900 + ... + 363935065909.

It is an arithmetic number, because the mean of its divisors is an integer number (1091805197715).

Almost surely, 2^{3639350659045} is an apocalyptic number.

It is an amenable number.

3639350659045 is a deficient number, since it is larger than the sum of its proper divisors (727870131815).

3639350659045 is an equidigital number, since it uses as much as digits as its factorization.

3639350659045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 727870131814.

The product of its (nonzero) digits is 39366000, while the sum is 58.

The spelling of 3639350659045 in words is "three trillion, six hundred thirty-nine billion, three hundred fifty million, six hundred fifty-nine thousand, forty-five".