53602143844 has 6 divisors (see below), whose sum is σ = 93803751734. Its totient is φ = 26801071920.

The previous prime is 53602143841. The next prime is 53602143857. The reversal of 53602143844 is 44834120635.

It can be written as a sum of positive squares in only one way, i.e., 29812166244 + 23789977600 = 172662^2 + 154240^2 .

It is a junction number, because it is equal to n+sod(n) for n = 53602143797 and 53602143806.

It is not an unprimeable number, because it can be changed into a prime (53602143841) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6700267977 + ... + 6700267984.

Almost surely, 2^53602143844 is an apocalyptic number.

It is an amenable number.

53602143844 is a deficient number, since it is larger than the sum of its proper divisors (40201607890).

53602143844 is a wasteful number, since it uses less digits than its factorization.

53602143844 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13400535965 (or 13400535963 counting only the distinct ones).

The product of its (nonzero) digits is 276480, while the sum is 40.

The spelling of 53602143844 in words is "fifty-three billion, six hundred two million, one hundred forty-three thousand, eight hundred forty-four".