2750380866 has 32 divisors (see below), whose sum is σ = 6277150080. Its totient is φ = 892014768.

The previous prime is 2750380861. The next prime is 2750380873. The reversal of 2750380866 is 6680830572.

2750380866 is a `hidden beast` number, since 2 + 7 + 503 + 80 + 8 + 66 = 666.

It is not an unprimeable number, because it can be changed into a prime (2750380861) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 686286 + ... + 690281.

It is an arithmetic number, because the mean of its divisors is an integer number (196160940).

Almost surely, 2^2750380866 is an apocalyptic number.

2750380866 is an abundant number, since it is smaller than the sum of its proper divisors (3526769214).

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

2750380866 is a wasteful number, since it uses less digits than its factorization.

2750380866 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1376615 (or 1376609 counting only the distinct ones).

The product of its (nonzero) digits is 483840, while the sum is 45.

The square root of 2750380866 is about 52444.0736976067. The cubic root of 2750380866 is about 1401.0843412215.

The spelling of 2750380866 in words is "two billion, seven hundred fifty million, three hundred eighty thousand, eight hundred sixty-six".