774146222244 has 18 divisors (see below), whose sum is σ = 1956869617430. Its totient is φ = 258048740736.

The previous prime is 774146222243. The next prime is 774146222299. The reversal of 774146222244 is 442222641477.

774146222244 is a `hidden beast` number, since 7 + 7 + 4 + 14 + 622 + 2 + 2 + 4 + 4 = 666.

It can be written as a sum of positive squares in only one way, i.e., 629547033600 + 144599188644 = 793440^2 + 380262^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a self number, because there is not a number n which added to its sum of digits gives 774146222244.

It is not an unprimeable number, because it can be changed into a prime (774146222243) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 10752030829 + ... + 10752030900.

Almost surely, 2^774146222244 is an apocalyptic number.

It is an amenable number.

774146222244 is an abundant number, since it is smaller than the sum of its proper divisors (1182723395186).

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

774146222244 is a wasteful number, since it uses less digits than its factorization.

774146222244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21504061739 (or 21504061734 counting only the distinct ones).

The product of its digits is 1204224, while the sum is 45.

The spelling of 774146222244 in words is "seven hundred seventy-four billion, one hundred forty-six million, two hundred twenty-two thousand, two hundred forty-four".