2782895816213 has 8 divisors (see below), whose sum is σ = 2911204459800. Its totient is φ = 2656743620608.

The previous prime is 2782895816153. The next prime is 2782895816257. The reversal of 2782895816213 is 3126185982872.

It can be written as a sum of positive squares in 4 ways, for example, as 769967640484 + 2012928175729 = 877478^2 + 1418777^2 .

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 2782895816213 - 2¹² = 2782895812117 is a prime.

It is a super-2 number, since 2×2782895816213² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2782895816513) 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, 539109356 + ... + 539114517.

It is an arithmetic number, because the mean of its divisors is an integer number (363900557475).

Almost surely, 2^{2782895816213} is an apocalyptic number.

It is an amenable number.

2782895816213 is a deficient number, since it is larger than the sum of its proper divisors (128308643587).

2782895816213 is a wasteful number, since it uses less digits than its factorization.

2782895816213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1078223991.

The product of its digits is 23224320, while the sum is 62.

The spelling of 2782895816213 in words is "two trillion, seven hundred eighty-two billion, eight hundred ninety-five million, eight hundred sixteen thousand, two hundred thirteen".