2081848687 has 4 divisors (see below), whose sum is σ = 2115977416. Its totient is φ = 2047719960.

The previous prime is 2081848631. The next prime is 2081848693. The reversal of 2081848687 is 7868481802.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 2081848687 - 2¹⁵ = 2081815919 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 (2081848387) 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, 17064273 + ... + 17064394.

It is an arithmetic number, because the mean of its divisors is an integer number (528994354).

Almost surely, 2^2081848687 is an apocalyptic number.

2081848687 is a deficient number, since it is larger than the sum of its proper divisors (34128729).

2081848687 is an equidigital number, since it uses as much as digits as its factorization.

2081848687 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34128728.

The product of its (nonzero) digits is 1376256, while the sum is 52.

The square root of 2081848687 is about 45627.2800745344. The cubic root of 2081848687 is about 1276.8789289629.

The spelling of 2081848687 in words is "two billion, eighty-one million, eight hundred forty-eight thousand, six hundred eighty-seven".