2781319713 has 8 divisors (see below), whose sum is σ = 3715860000. Its totient is φ = 1850496288.

The previous prime is 2781319669. The next prime is 2781319759. The reversal of 2781319713 is 3179131872.

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

It is not a de Polignac number, because 2781319713 - 2¹³ = 2781311521 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2781319763) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 927468 + ... + 930461.

It is an arithmetic number, because the mean of its divisors is an integer number (464482500).

Almost surely, 2^2781319713 is an apocalyptic number.

It is an amenable number.

2781319713 is a deficient number, since it is larger than the sum of its proper divisors (934540287).

2781319713 is a wasteful number, since it uses less digits than its factorization.

2781319713 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1858431.

The product of its digits is 63504, while the sum is 42.

The square root of 2781319713 is about 52738.2187128083. The cubic root of 2781319713 is about 1406.3183318421.

The spelling of 2781319713 in words is "two billion, seven hundred eighty-one million, three hundred nineteen thousand, seven hundred thirteen".