63409649782987 has 8 divisors (see below), whose sum is σ = 65039147933760. Its totient is φ = 61787190501960.

The previous prime is 63409649782967. The next prime is 63409649782991. The reversal of 63409649782987 is 78928794690436.

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 63409649782987 - 2⁷ = 63409649782859 is a prime.

It is a super-3 number, since 3×63409649782987³ (a number of 42 digits) contains 333 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 63409649782987.

It is not an unprimeable number, because it can be changed into a prime (63409649782967) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1759699189 + ... + 1759735222.

It is an arithmetic number, because the mean of its divisors is an integer number (8129893491720).

Almost surely, 2^{63409649782987} is an apocalyptic number.

63409649782987 is a deficient number, since it is larger than the sum of its proper divisors (1629498150773).

63409649782987 is a wasteful number, since it uses less digits than its factorization.

63409649782987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3519434873.

The product of its (nonzero) digits is 7900913664, while the sum is 82.

The spelling of 63409649782987 in words is "sixty-three trillion, four hundred nine billion, six hundred forty-nine million, seven hundred eighty-two thousand, nine hundred eighty-seven".