13217378705 has 16 divisors (see below), whose sum is σ = 17335586304. Its totient is φ = 9630877440.

The previous prime is 13217378663. The next prime is 13217378737. The reversal of 13217378705 is 50787371231.

It is not a de Polignac number, because 13217378705 - 2¹⁶ = 13217313169 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2505407 + ... + 2510676.

It is an arithmetic number, because the mean of its divisors is an integer number (1083474144).

Almost surely, 2^13217378705 is an apocalyptic number.

It is an amenable number.

13217378705 is a deficient number, since it is larger than the sum of its proper divisors (4118207599).

13217378705 is a wasteful number, since it uses less digits than its factorization.

13217378705 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5016136.

The product of its (nonzero) digits is 246960, while the sum is 44.

The spelling of 13217378705 in words is "thirteen billion, two hundred seventeen million, three hundred seventy-eight thousand, seven hundred five".