3454446643645 has 4 divisors (see below), whose sum is σ = 4145335972380. Its totient is φ = 2763557314912.

The previous prime is 3454446643639. The next prime is 3454446643657. The reversal of 3454446643645 is 5463466444543.

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 592465799524 + 2861980844121 = 769718^2 + 1691739^2 .

It is a cyclic number.

It is not a de Polignac number, because 3454446643645 - 2²¹ = 3454444546493 is a prime.

It is a super-2 number, since 2×3454446643645² (a number of 26 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 3454446643645.

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 3 ways as a sum of consecutive naturals, for example, 345444664360 + ... + 345444664369.

It is an arithmetic number, because the mean of its divisors is an integer number (1036333993095).

Almost surely, 2^{3454446643645} is an apocalyptic number.

It is an amenable number.

3454446643645 is a deficient number, since it is larger than the sum of its proper divisors (690889328735).

3454446643645 is an equidigital number, since it uses as much as digits as its factorization.

3454446643645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 690889328734.

The product of its digits is 199065600, while the sum is 58.

The spelling of 3454446643645 in words is "three trillion, four hundred fifty-four billion, four hundred forty-six million, six hundred forty-three thousand, six hundred forty-five".