52644819646 has 16 divisors (see below), whose sum is σ = 82410522624. Its totient is φ = 25174921464.

The previous prime is 52644819637. The next prime is 52644819679. The reversal of 52644819646 is 64691844625.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 343135 + ... + 472261.

It is an arithmetic number, because the mean of its divisors is an integer number (5150657664).

Almost surely, 2^52644819646 is an apocalyptic number.

52644819646 is a deficient number, since it is larger than the sum of its proper divisors (29765702978).

52644819646 is a wasteful number, since it uses less digits than its factorization.

52644819646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 138015.

The product of its digits is 9953280, while the sum is 55.

The spelling of 52644819646 in words is "fifty-two billion, six hundred forty-four million, eight hundred nineteen thousand, six hundred forty-six".