646524232792 has 32 divisors (see below), whose sum is σ = 1228257676800. Its totient is φ = 318993386400.

The previous prime is 646524232789. The next prime is 646524232793. The reversal of 646524232792 is 297232425646.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (646524232793) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 862117 + ... + 1426987.

It is an arithmetic number, because the mean of its divisors is an integer number (38383052400).

Almost surely, 2^646524232792 is an apocalyptic number.

It is an amenable number.

646524232792 is a deficient number, since it is larger than the sum of its proper divisors (581733444008).

646524232792 is a wasteful number, since it uses less digits than its factorization.

646524232792 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 566767 (or 566763 counting only the distinct ones).

The product of its digits is 8709120, while the sum is 52.

The spelling of 646524232792 in words is "six hundred forty-six billion, five hundred twenty-four million, two hundred thirty-two thousand, seven hundred ninety-two".