216878851047339 has 288 divisors, whose sum is σ = 364029604882944. Its totient is φ = 124134640680960.

The previous prime is 216878851047337. The next prime is 216878851047379. The reversal of 216878851047339 is 933740158878612.

216878851047339 is a `hidden beast` number, since 2 + 1 + 6 + 8 + 7 + 8 + 8 + 510 + 4 + 73 + 39 = 666.

It is not a de Polignac number, because 216878851047339 - 2¹ = 216878851047337 is a prime.

It is a super-2 number, since 2×216878851047339² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (216878851047337) by changing a digit.

It is a polite number, since it can be written in 287 ways as a sum of consecutive naturals, for example, 128103277977 + ... + 128103279669.

It is a 1-persistent number, because it is pandigital, but 2⋅216878851047339 = 433757702094678 is not.

Almost surely, 2^{216878851047339} is an apocalyptic number.

216878851047339 is a deficient number, since it is larger than the sum of its proper divisors (147150753835605).

216878851047339 is a wasteful number, since it uses less digits than its factorization.

216878851047339 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2647 (or 2631 counting only the distinct ones).

The product of its (nonzero) digits is 487710720, while the sum is 72.

The spelling of 216878851047339 in words is "two hundred sixteen trillion, eight hundred seventy-eight billion, eight hundred fifty-one million, forty-seven thousand, three hundred thirty-nine".