2086835966497 has 4 divisors (see below), whose sum is σ = 2086852134276. Its totient is φ = 2086819798720.

The previous prime is 2086835966491. The next prime is 2086835966549. The reversal of 2086835966497 is 7946695386802.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1409719283856 + 677116682641 = 1187316^2 + 822871^2 .

It is a cyclic number.

It is not a de Polignac number, because 2086835966497 - 2¹¹ = 2086835964449 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2086835966491) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7888708 + ... + 8148949.

It is an arithmetic number, because the mean of its divisors is an integer number (521713033569).

Almost surely, 2^{2086835966497} is an apocalyptic number.

It is an amenable number.

2086835966497 is a deficient number, since it is larger than the sum of its proper divisors (16167779).

2086835966497 is a wasteful number, since it uses less digits than its factorization.

2086835966497 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16167778.

The product of its (nonzero) digits is 940584960, while the sum is 73.

The spelling of 2086835966497 in words is "two trillion, eighty-six billion, eight hundred thirty-five million, nine hundred sixty-six thousand, four hundred ninety-seven".