2227738909780 has 12 divisors (see below), whose sum is σ = 4678251710580. Its totient is φ = 891095563904.

The previous prime is 2227738909717. The next prime is 2227738909819. The reversal of 2227738909780 is 879098377222.

It can be written as a sum of positive squares in 2 ways, for example, as 1150037470404 + 1077701439376 = 1072398^2 + 1038124^2 .

It is a congruent 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 3 ways as a sum of consecutive naturals, for example, 55693472725 + ... + 55693472764.

It is an arithmetic number, because the mean of its divisors is an integer number (389854309215).

Almost surely, 2^{2227738909780} is an apocalyptic number.

2227738909780 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2227738909780 is an abundant number, since it is smaller than the sum of its proper divisors (2450512800800).

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

2227738909780 is a wasteful number, since it uses less digits than its factorization.

2227738909780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111386945498 (or 111386945496 counting only the distinct ones).

The product of its (nonzero) digits is 42674688, while the sum is 64.

The spelling of 2227738909780 in words is "two trillion, two hundred twenty-seven billion, seven hundred thirty-eight million, nine hundred nine thousand, seven hundred eighty".