216873478283413 has 16 divisors (see below), whose sum is σ = 253129653803520. Its totient is φ = 181935888114816.

The previous prime is 216873478283401. The next prime is 216873478283513. The reversal of 216873478283413 is 314382874378612.

It is a cyclic number.

It is not a de Polignac number, because 216873478283413 - 2²¹ = 216873476186261 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 (216873478283513) 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, 149059545 + ... + 150507457.

It is an arithmetic number, because the mean of its divisors is an integer number (15820603362720).

Almost surely, 2^{216873478283413} is an apocalyptic number.

It is an amenable number.

216873478283413 is a deficient number, since it is larger than the sum of its proper divisors (36256175520107).

216873478283413 is a wasteful number, since it uses less digits than its factorization.

216873478283413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1903236.

The product of its digits is 260112384, while the sum is 67.

The spelling of 216873478283413 in words is "two hundred sixteen trillion, eight hundred seventy-three billion, four hundred seventy-eight million, two hundred eighty-three thousand, four hundred thirteen".