2768881919 has 4 divisors (see below), whose sum is σ = 2931757344. Its totient is φ = 2606006496.

The previous prime is 2768881889. The next prime is 2768881949. The reversal of 2768881919 is 9191888672.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (2768881889) and next prime (2768881949).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2768881919 is a prime.

It is a super-2 number, since 2×2768881919² = 15333414162730245122, 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 (2768881949) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 81437687 + ... + 81437720.

It is an arithmetic number, because the mean of its divisors is an integer number (732939336).

Almost surely, 2^2768881919 is an apocalyptic number.

2768881919 is a deficient number, since it is larger than the sum of its proper divisors (162875425).

2768881919 is a wasteful number, since it uses less digits than its factorization.

2768881919 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 162875424.

The product of its digits is 3483648, while the sum is 59.

The square root of 2768881919 is about 52620.1664668595. The cubic root of 2768881919 is about 1404.2188924968.

The spelling of 2768881919 in words is "two billion, seven hundred sixty-eight million, eight hundred eighty-one thousand, nine hundred nineteen".