646288612053 has 32 divisors (see below), whose sum is σ = 1001759539200. Its totient is φ = 362997662976.

The previous prime is 646288612037. The next prime is 646288612097. The reversal of 646288612053 is 350216882646.

It is not a de Polignac number, because 646288612053 - 2⁴ = 646288612037 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 646288611987 and 646288612005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (646288612153) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 503508 + ... + 1243421.

It is an arithmetic number, because the mean of its divisors is an integer number (31304985600).

Almost surely, 2^646288612053 is an apocalyptic number.

It is an amenable number.

646288612053 is a deficient number, since it is larger than the sum of its proper divisors (355470927147).

646288612053 is a wasteful number, since it uses less digits than its factorization.

646288612053 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1747241.

The product of its (nonzero) digits is 3317760, while the sum is 51.

The spelling of 646288612053 in words is "six hundred forty-six billion, two hundred eighty-eight million, six hundred twelve thousand, fifty-three".