2775285881 has 8 divisors (see below), whose sum is σ = 2869459200. Its totient is φ = 2681403120.

The previous prime is 2775285871. The next prime is 2775285907. The reversal of 2775285881 is 1885825772.

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 2775285881 - 2⁶ = 2775285817 is a prime.

It is a super-2 number, since 2×2775285881² = 15404423442555892322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2775285871) 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, 53126 + ... + 91503.

It is an arithmetic number, because the mean of its divisors is an integer number (358682400).

Almost surely, 2^2775285881 is an apocalyptic number.

It is an amenable number.

2775285881 is a deficient number, since it is larger than the sum of its proper divisors (94173319).

2775285881 is a wasteful number, since it uses less digits than its factorization.

2775285881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 145279.

The product of its digits is 2508800, while the sum is 53.

The square root of 2775285881 is about 52680.9821567518. The cubic root of 2775285881 is about 1405.3006336493.

The spelling of 2775285881 in words is "two billion, seven hundred seventy-five million, two hundred eighty-five thousand, eight hundred eighty-one".