2681209207 has 4 divisors (see below), whose sum is σ = 2681476776. Its totient is φ = 2680941640.

The previous prime is 2681209183. The next prime is 2681209241. The reversal of 2681209207 is 7029021862.

2681209207 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 2681209207 - 2¹¹ = 2681207159 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 (2681209607) 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, 118144 + ... + 138997.

It is an arithmetic number, because the mean of its divisors is an integer number (670369194).

Almost surely, 2^2681209207 is an apocalyptic number.

2681209207 is a deficient number, since it is larger than the sum of its proper divisors (267569).

2681209207 is a wasteful number, since it uses less digits than its factorization.

2681209207 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 267568.

The product of its (nonzero) digits is 24192, while the sum is 37.

The square root of 2681209207 is about 51780.3940406019. The cubic root of 2681209207 is about 1389.2387887386.

The spelling of 2681209207 in words is "two billion, six hundred eighty-one million, two hundred nine thousand, two hundred seven".