3645999282389 has 4 divisors (see below), whose sum is σ = 3646985490924. Its totient is φ = 3645013073856.

The previous prime is 3645999282371. The next prime is 3645999282433. The reversal of 3645999282389 is 9832829995463.

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 766132584100 + 2879866698289 = 875290^2 + 1697017^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3645999282389 is a prime.

It is a super-2 number, since 2×3645999282389² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3645999282889) 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, 493098722 + ... + 493106115.

It is an arithmetic number, because the mean of its divisors is an integer number (911746372731).

Almost surely, 2^{3645999282389} is an apocalyptic number.

It is an amenable number.

3645999282389 is a deficient number, since it is larger than the sum of its proper divisors (986208535).

3645999282389 is an equidigital number, since it uses as much as digits as its factorization.

3645999282389 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 986208534.

The product of its digits is 1813985280, while the sum is 77.

The spelling of 3645999282389 in words is "three trillion, six hundred forty-five billion, nine hundred ninety-nine million, two hundred eighty-two thousand, three hundred eighty-nine".