2774750881 has 12 divisors (see below), whose sum is σ = 3259735380. Its totient is φ = 2354805600.

The previous prime is 2774750831. The next prime is 2774750903. The reversal of 2774750881 is 1880574772.

It can be written as a sum of positive squares in 2 ways, for example, as 1592010000 + 1182740881 = 39900^2 + 34391^2 .

It is not a de Polignac number, because 2774750881 - 2⁷ = 2774750753 is a prime.

It is a super-2 number, since 2×2774750881² = 15398484903220552322, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (49).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2774750831) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 275386 + ... + 285283.

It is an arithmetic number, because the mean of its divisors is an integer number (271644615).

Almost surely, 2^2774750881 is an apocalyptic number.

It is an amenable number.

2774750881 is a deficient number, since it is larger than the sum of its proper divisors (484984499).

2774750881 is a wasteful number, since it uses less digits than its factorization.

2774750881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 560784 (or 560777 counting only the distinct ones).

The product of its (nonzero) digits is 878080, while the sum is 49.

The square root of 2774750881 is about 52675.9041782863. The cubic root of 2774750881 is about 1405.2103265377.

The spelling of 2774750881 in words is "two billion, seven hundred seventy-four million, seven hundred fifty thousand, eight hundred eighty-one".