53343600644 has 6 divisors (see below), whose sum is σ = 93351301134. Its totient is φ = 26671800320.

The previous prime is 53343600617. The next prime is 53343600659. The reversal of 53343600644 is 44600634335.

It can be written as a sum of positive squares in only one way, i.e., 43614145600 + 9729455044 = 208840^2 + 98638^2 .

It is a junction number, because it is equal to n+sod(n) for n = 53343600598 and 53343600607.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6667950077 + ... + 6667950084.

It is an arithmetic number, because the mean of its divisors is an integer number (15558550189).

Almost surely, 2^53343600644 is an apocalyptic number.

It is an amenable number.

53343600644 is a deficient number, since it is larger than the sum of its proper divisors (40007700490).

53343600644 is a wasteful number, since it uses less digits than its factorization.

53343600644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13335900165 (or 13335900163 counting only the distinct ones).

The product of its (nonzero) digits is 311040, while the sum is 38.

The spelling of 53343600644 in words is "fifty-three billion, three hundred forty-three million, six hundred thousand, six hundred forty-four".