2813887313 has 8 divisors (see below), whose sum is σ = 2911521000. Its totient is φ = 2716293888.

The previous prime is 2813887309. The next prime is 2813887343. The reversal of 2813887313 is 3137883182.

It can be written as a sum of positive squares in 4 ways, for example, as 1021889089 + 1791998224 = 31967^2 + 42332^2 .

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 2813887313 - 2² = 2813887309 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2813887303) 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, 227513 + ... + 239561.

It is an arithmetic number, because the mean of its divisors is an integer number (363940125).

Almost surely, 2^2813887313 is an apocalyptic number.

It is an amenable number.

2813887313 is a deficient number, since it is larger than the sum of its proper divisors (97633687).

2813887313 is a wasteful number, since it uses less digits than its factorization.

2813887313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20131.

The product of its digits is 193536, while the sum is 44.

The square root of 2813887313 is about 53046.0866888407. The cubic root of 2813887313 is about 1411.7860961073.

The spelling of 2813887313 in words is "two billion, eight hundred thirteen million, eight hundred eighty-seven thousand, three hundred thirteen".