1363643489 has 8 divisors (see below), whose sum is σ = 1468888512. Its totient is φ = 1258448400.

The previous prime is 1363643467. The next prime is 1363643507. The reversal of 1363643489 is 9843463631.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1363643489 - 2¹² = 1363639393 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1363643089) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 59762 + ... + 79364.

It is an arithmetic number, because the mean of its divisors is an integer number (183611064).

Almost surely, 2^1363643489 is an apocalyptic number.

It is an amenable number.

1363643489 is a deficient number, since it is larger than the sum of its proper divisors (105245023).

1363643489 is a wasteful number, since it uses less digits than its factorization.

1363643489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24967.

The product of its digits is 1119744, while the sum is 47.

The square root of 1363643489 is about 36927.5437715535. The cubic root of 1363643489 is about 1108.9201653915.

The spelling of 1363643489 in words is "one billion, three hundred sixty-three million, six hundred forty-three thousand, four hundred eighty-nine".