53440400012 has 6 divisors (see below), whose sum is σ = 93520700028. Its totient is φ = 26720200004.

The previous prime is 53440400009. The next prime is 53440400017. The reversal of 53440400012 is 21000404435.

It is not an unprimeable number, because it can be changed into a prime (53440400017) by changing a digit.

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 as a sum of consecutive naturals, namely, 6680049998 + ... + 6680050005.

It is an arithmetic number, because the mean of its divisors is an integer number (15586783338).

Almost surely, 2^53440400012 is an apocalyptic number.

It is an amenable number.

53440400012 is a deficient number, since it is larger than the sum of its proper divisors (40080300016).

53440400012 is a wasteful number, since it uses less digits than its factorization.

53440400012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13360100007 (or 13360100005 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 23.

Adding to 53440400012 its reverse (21000404435), we get a palindrome (74440804447).

The spelling of 53440400012 in words is "fifty-three billion, four hundred forty million, four hundred thousand, twelve".