3659821045 has 16 divisors (see below), whose sum is σ = 4445616960. Its totient is φ = 2892127744.

The previous prime is 3659821027. The next prime is 3659821057. The reversal of 3659821045 is 5401289563.

It is a cyclic number.

It is not a de Polignac number, because 3659821045 - 2⁹ = 3659820533 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 3659820992 and 3659821010.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 179166 + ... + 198544.

It is an arithmetic number, because the mean of its divisors is an integer number (277851060).

Almost surely, 2^3659821045 is an apocalyptic number.

It is an amenable number.

3659821045 is a deficient number, since it is larger than the sum of its proper divisors (785795915).

3659821045 is a wasteful number, since it uses less digits than its factorization.

3659821045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19844.

The product of its (nonzero) digits is 259200, while the sum is 43.

The square root of 3659821045 is about 60496.4548134847. The cubic root of 3659821045 is about 1541.0614267146.

The spelling of 3659821045 in words is "three billion, six hundred fifty-nine million, eight hundred twenty-one thousand, forty-five".