3645949455 has 96 divisors (see below), whose sum is σ = 7111540800. Its totient is φ = 1766080512.

The previous prime is 3645949441. The next prime is 3645949487. The reversal of 3645949455 is 5549495463.

3645949455 is a `hidden beast` number, since 3 + 6 + 4 + 594 + 9 + 45 + 5 = 666.

It is not a de Polignac number, because 3645949455 - 2¹⁶ = 3645883919 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 1929151 + ... + 1931039.

It is an arithmetic number, because the mean of its divisors is an integer number (74078550).

Almost surely, 2^3645949455 is an apocalyptic number.

3645949455 is a deficient number, since it is larger than the sum of its proper divisors (3465591345).

3645949455 is a wasteful number, since it uses less digits than its factorization.

3645949455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1978 (or 1943 counting only the distinct ones).

The product of its digits is 11664000, while the sum is 54.

The square root of 3645949455 is about 60381.6980135537. The cubic root of 3645949455 is about 1539.1119655288. Note that the first 3 decimals are identical.

The spelling of 3645949455 in words is "three billion, six hundred forty-five million, nine hundred forty-nine thousand, four hundred fifty-five".