2681993285 has 8 divisors (see below), whose sum is σ = 3305375736. Its totient is φ = 2087605440.

The previous prime is 2681993273. The next prime is 2681993297. The reversal of 2681993285 is 5823991862.

It is an interprime number because it is at equal distance from previous prime (2681993273) and next prime (2681993297).

It can be written as a sum of positive squares in 4 ways, for example, as 712142596 + 1969850689 = 26686^2 + 44383^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2681993285 - 2²⁸ = 2413557829 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7248446 + ... + 7248815.

It is an arithmetic number, because the mean of its divisors is an integer number (413171967).

Almost surely, 2^2681993285 is an apocalyptic number.

It is an amenable number.

2681993285 is a deficient number, since it is larger than the sum of its proper divisors (623382451).

2681993285 is a wasteful number, since it uses less digits than its factorization.

2681993285 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14497303.

The product of its digits is 1866240, while the sum is 53.

The square root of 2681993285 is about 51787.9646732713. The cubic root of 2681993285 is about 1389.3741959776.

The spelling of 2681993285 in words is "two billion, six hundred eighty-one million, nine hundred ninety-three thousand, two hundred eighty-five".