2776871213 has 16 divisors (see below), whose sum is σ = 2957575680. Its totient is φ = 2601618096.

The previous prime is 2776871203. The next prime is 2776871231. The reversal of 2776871213 is 3121786772.

It is a cyclic number.

It is not a de Polignac number, because 2776871213 - 2¹² = 2776867117 is a prime.

It is a super-2 number, since 2×2776871213² = 15422027467176182738, which 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 (2776871203) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 270806 + ... + 280872.

It is an arithmetic number, because the mean of its divisors is an integer number (184848480).

Almost surely, 2^2776871213 is an apocalyptic number.

2776871213 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

It is an amenable number.

2776871213 is a deficient number, since it is larger than the sum of its proper divisors (180704467).

2776871213 is a wasteful number, since it uses less digits than its factorization.

2776871213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10336.

The product of its digits is 197568, while the sum is 44.

The square root of 2776871213 is about 52696.0265390096. The cubic root of 2776871213 is about 1405.5681669275.

The spelling of 2776871213 in words is "two billion, seven hundred seventy-six million, eight hundred seventy-one thousand, two hundred thirteen".