53984465845 has 16 divisors (see below), whose sum is σ = 67706094960. Its totient is φ = 41268455424.

The previous prime is 53984465837. The next prime is 53984465867. The reversal of 53984465845 is 54856448935.

It can be written as a sum of positive squares in 8 ways, for example, as 1394051569 + 52590414276 = 37337^2 + 229326^2 .

It is a cyclic number.

It is not a de Polignac number, because 53984465845 - 2³ = 53984465837 is a prime.

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 15 ways as a sum of consecutive naturals, for example, 1905042 + ... + 1933171.

It is an arithmetic number, because the mean of its divisors is an integer number (4231630935).

Almost surely, 2^53984465845 is an apocalyptic number.

It is an amenable number.

53984465845 is a deficient number, since it is larger than the sum of its proper divisors (13721629115).

53984465845 is a wasteful number, since it uses less digits than its factorization.

53984465845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3838344.

The product of its digits is 82944000, while the sum is 61.

The spelling of 53984465845 in words is "fifty-three billion, nine hundred eighty-four million, four hundred sixty-five thousand, eight hundred forty-five".