2776881008 has 80 divisors (see below), whose sum is σ = 6191865600. Its totient is φ = 1193149440.

The previous prime is 2776881007. The next prime is 2776881053. The reversal of 2776881008 is 8001886772.

It is a happy number.

2776881008 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×2776881008² = 15422136265182192128, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2776881007) 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, 2751608 + ... + 2752616.

It is an arithmetic number, because the mean of its divisors is an integer number (77398320).

Almost surely, 2^2776881008 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2776881008, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3095932800).

2776881008 is an abundant number, since it is smaller than the sum of its proper divisors (3414984592).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2776881008 is a wasteful number, since it uses less digits than its factorization.

2776881008 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1870 (or 1864 counting only the distinct ones).

The product of its (nonzero) digits is 301056, while the sum is 47.

The square root of 2776881008 is about 52696.1194776238. The cubic root of 2776881008 is about 1405.5698195697.

The spelling of 2776881008 in words is "two billion, seven hundred seventy-six million, eight hundred eighty-one thousand, eight".