211685078297 has 48 divisors (see below), whose sum is σ = 270868268160. Its totient is φ = 161888263680.

The previous prime is 211685078281. The next prime is 211685078299. The reversal of 211685078297 is 792870586112.

211685078297 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 211685078297 - 2⁴ = 211685078281 is a prime.

It is not an unprimeable number, because it can be changed into a prime (211685078299) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 33828593 + ... + 33834849.

It is an arithmetic number, because the mean of its divisors is an integer number (5643088920).

Almost surely, 2^211685078297 is an apocalyptic number.

It is an amenable number.

211685078297 is a deficient number, since it is larger than the sum of its proper divisors (59183189863).

211685078297 is a wasteful number, since it uses less digits than its factorization.

211685078297 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7022 (or 7011 counting only the distinct ones).

The product of its (nonzero) digits is 3386880, while the sum is 56.

The spelling of 211685078297 in words is "two hundred eleven billion, six hundred eighty-five million, seventy-eight thousand, two hundred ninety-seven".