3634046645 has 4 divisors (see below), whose sum is σ = 4360855980. Its totient is φ = 2907237312.

The previous prime is 3634046617. The next prime is 3634046657. The reversal of 3634046645 is 5466404363.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5466404363 = 7 ⋅780914909.

It can be written as a sum of positive squares in 2 ways, for example, as 1134746596 + 2499300049 = 33686^2 + 49993^2 .

It is a cyclic number.

It is not a de Polignac number, because 3634046645 - 2²⁴ = 3617269429 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 363404660 + ... + 363404669.

It is an arithmetic number, because the mean of its divisors is an integer number (1090213995).

Almost surely, 2^3634046645 is an apocalyptic number.

It is an amenable number.

3634046645 is a deficient number, since it is larger than the sum of its proper divisors (726809335).

3634046645 is an equidigital number, since it uses as much as digits as its factorization.

3634046645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 726809334.

The product of its (nonzero) digits is 622080, while the sum is 41.

The square root of 3634046645 is about 60283.0543768313. The cubic root of 3634046645 is about 1537.4352436648.

The spelling of 3634046645 in words is "three billion, six hundred thirty-four million, forty-six thousand, six hundred forty-five".