2681542839 has 8 divisors (see below), whose sum is σ = 3625748352. Its totient is φ = 1762516280.

The previous prime is 2681542819. The next prime is 2681542849. The reversal of 2681542839 is 9382451862.

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

It is a cyclic number.

It is not a de Polignac number, because 2681542839 - 2⁹ = 2681542327 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2681542819) 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 7 ways as a sum of consecutive naturals, for example, 6294489 + ... + 6294914.

It is an arithmetic number, because the mean of its divisors is an integer number (453218544).

Almost surely, 2^2681542839 is an apocalyptic number.

2681542839 is a deficient number, since it is larger than the sum of its proper divisors (944205513).

2681542839 is a wasteful number, since it uses less digits than its factorization.

2681542839 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12589477.

The product of its digits is 829440, while the sum is 48.

The square root of 2681542839 is about 51783.6155458462. The cubic root of 2681542839 is about 1389.2964089212.

The spelling of 2681542839 in words is "two billion, six hundred eighty-one million, five hundred forty-two thousand, eight hundred thirty-nine".