424371786644 has 12 divisors (see below), whose sum is σ = 799777598004. Its totient is φ = 195863901504.

The previous prime is 424371786623. The next prime is 424371786647. The reversal of 424371786644 is 446687173424.

It can be written as a sum of positive squares in 2 ways, for example, as 89049721744 + 335322064900 = 298412^2 + 579070^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 424371786644.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (424371786647) 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 3 ways as a sum of consecutive naturals, for example, 4080497897 + ... + 4080498000.

It is an arithmetic number, because the mean of its divisors is an integer number (66648133167).

Almost surely, 2^424371786644 is an apocalyptic number.

It is an amenable number.

424371786644 is a deficient number, since it is larger than the sum of its proper divisors (375405811360).

424371786644 is a wasteful number, since it uses less digits than its factorization.

424371786644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8160995914 (or 8160995912 counting only the distinct ones).

The product of its digits is 21676032, while the sum is 56.

The spelling of 424371786644 in words is "four hundred twenty-four billion, three hundred seventy-one million, seven hundred eighty-six thousand, six hundred forty-four".