2750278260266 has 4 divisors (see below), whose sum is σ = 4125417390402. Its totient is φ = 1375139130132.

The previous prime is 2750278260241. The next prime is 2750278260271. The reversal of 2750278260266 is 6620628720572.

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

It can be written as a sum of positive squares in only one way, i.e., 2559427232041 + 190851028225 = 1599821^2 + 436865^2 .

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 687569565065 + ... + 687569565068.

Almost surely, 2^{2750278260266} is an apocalyptic number.

2750278260266 is a deficient number, since it is larger than the sum of its proper divisors (1375139130136).

2750278260266 is a wasteful number, since it uses less digits than its factorization.

2750278260266 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1375139130135.

The product of its (nonzero) digits is 6773760, while the sum is 53.

The spelling of 2750278260266 in words is "two trillion, seven hundred fifty billion, two hundred seventy-eight million, two hundred sixty thousand, two hundred sixty-six".