2775250052778 has 32 divisors (see below), whose sum is σ = 6562167615360. Its totient is φ = 765586221120.

The previous prime is 2775250052759. The next prime is 2775250052801. The reversal of 2775250052778 is 8772500525772.

It is a Smith number, since the sum of its digits (57) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

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 in 15 ways as a sum of consecutive naturals, for example, 1139263993 + ... + 1139266428.

It is an arithmetic number, because the mean of its divisors is an integer number (205067737980).

Almost surely, 2^{2775250052778} is an apocalyptic number.

2775250052778 is an abundant number, since it is smaller than the sum of its proper divisors (3786917562582).

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

2775250052778 is a wasteful number, since it uses less digits than its factorization.

2775250052778 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2278530462.

The product of its (nonzero) digits is 19208000, while the sum is 57.

The spelling of 2775250052778 in words is "two trillion, seven hundred seventy-five billion, two hundred fifty million, fifty-two thousand, seven hundred seventy-eight".