47216981609 has 16 divisors (see below), whose sum is σ = 55822381056. Its totient is φ = 39082208400.

The previous prime is 47216981531. The next prime is 47216981611. The reversal of 47216981609 is 90618961274.

It is not a de Polignac number, because 47216981609 - 2¹⁶ = 47216916073 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (47216981629) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 131627 + ... + 334304.

It is an arithmetic number, because the mean of its divisors is an integer number (3488898816).

Almost surely, 2^47216981609 is an apocalyptic number.

It is an amenable number.

47216981609 is a deficient number, since it is larger than the sum of its proper divisors (8605399447).

47216981609 is a wasteful number, since it uses less digits than its factorization.

47216981609 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 466436.

The product of its (nonzero) digits is 1306368, while the sum is 53.

The spelling of 47216981609 in words is "forty-seven billion, two hundred sixteen million, nine hundred eighty-one thousand, six hundred nine".