216707440771019 has 16 divisors (see below), whose sum is σ = 236664945681120. Its totient is φ = 196792827989760.

The previous prime is 216707440770889. The next prime is 216707440771043. The reversal of 216707440771019 is 910177044707612.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-216707440771019 is a prime.

It is a super-2 number, since 2×216707440771019² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (216707440771319) 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, 47473169 + ... + 51837405.

It is an arithmetic number, because the mean of its divisors is an integer number (14791559105070).

Almost surely, 2^{216707440771019} is an apocalyptic number.

216707440771019 is a deficient number, since it is larger than the sum of its proper divisors (19957504910101).

216707440771019 is a wasteful number, since it uses less digits than its factorization.

216707440771019 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4369150.

The product of its (nonzero) digits is 4148928, while the sum is 56.

The spelling of 216707440771019 in words is "two hundred sixteen trillion, seven hundred seven billion, four hundred forty million, seven hundred seventy-one thousand, nineteen".