3984462542509 has 16 divisors (see below), whose sum is σ = 4038495584256. Its totient is φ = 3930746590000.

The previous prime is 3984462542507. The next prime is 3984462542579. The reversal of 3984462542509 is 9052452644893.

It is a cyclic number.

It is not a de Polignac number, because 3984462542509 - 2¹ = 3984462542507 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3984462542507) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 185597994 + ... + 185619460.

It is an arithmetic number, because the mean of its divisors is an integer number (252405974016).

Almost surely, 2^{3984462542509} is an apocalyptic number.

It is an amenable number.

3984462542509 is a deficient number, since it is larger than the sum of its proper divisors (54033041747).

3984462542509 is a wasteful number, since it uses less digits than its factorization.

3984462542509 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28736.

The product of its (nonzero) digits is 74649600, while the sum is 61.

The spelling of 3984462542509 in words is "three trillion, nine hundred eighty-four billion, four hundred sixty-two million, five hundred forty-two thousand, five hundred nine".