53643463465 has 8 divisors (see below), whose sum is σ = 64698919560. Its totient is φ = 42696928512.

The previous prime is 53643463417. The next prime is 53643463507. The reversal of 53643463465 is 56436434635.

It can be written as a sum of positive squares in 4 ways, for example, as 33360291904 + 20283171561 = 182648^2 + 142419^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 53643463465 - 2⁹ = 53643462953 is a prime.

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 7 ways as a sum of consecutive naturals, for example, 27229200 + ... + 27231169.

It is an arithmetic number, because the mean of its divisors is an integer number (8087364945).

Almost surely, 2^53643463465 is an apocalyptic number.

It is an amenable number.

53643463465 is a deficient number, since it is larger than the sum of its proper divisors (11055456095).

53643463465 is a wasteful number, since it uses less digits than its factorization.

53643463465 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54460571.

The product of its digits is 9331200, while the sum is 49.

The spelling of 53643463465 in words is "fifty-three billion, six hundred forty-three million, four hundred sixty-three thousand, four hundred sixty-five".